Physics question and answers for January 02, 2024
- Q A battery of 6 volts is connected to the terminals of a three metre long wire of uniform thickness and resistance of the order of 100 2 The difference of...
- Q A network shown in the figure consists of a battery and five unknown resistors When a ideal ammeter is connected between the terminals A and B its reading is 4...
- Q The circuit was in the shown state from a long time Now the switch S is closed The amount of charge that flown through the switch S is 25x C...
- Q Consider the ladder network shown in figure What should be the value of resistance R so that effective resistance between A B becomes independent of number of elements in the...
- Q DIFFERENTIAL EQUATIONS PROVIDE FORMULA OF DIFFERENTIALS FOR KVL A piece of electrical component inside a gaming laptop uses a source of electromotive force resistor and inductor If the voltage resistance...
- Q Five hundred cells of same emf E and same internal resistance rare connected in series to form a loop in same order without external resistance The potential drop across 199...
- Q Find the equivalent resistance of the networks shown in figure between the points a and b b 1 2 r r Question Type Single Correct Type 4r 3 r www...
- Q Q1 define SI unit of electric current Q2 what happens to the resistance of a conductor when it turns into a circular loop Q3 three resistances 1 Ohm 3 ohm...
- Q Comprehension ill In the circuit shown an ideal battery of terminal voltage V 10 V is connected to the circuit Current in the circuit is recorded on changing the value...
- Q Q2 what happens to the resistance of a conductor when it turns into a circular loop Q3 three resistances 1 Ohm 3 ohm and 5 Ohm connected in series with...
- Q Solu Example 158 In the network as shown in Fig 3 168 each resistance r is of 2 Find the effective resistance between between points A and B www A...
- Q The current flowing through the 32 resistor in circuit shown below is 40 V 10 www 1 15 A from a to b 2 15 A from b to a...
- Q azes ni bolster Charge Flown due to a Time Varying Current The current in a wire varies with time according to relation I 4 21 Determine the quality of charge...
- Q WHICH OF THE FOLLOWING STATEMENTS IS INCORRECT 1 point WHEATSONE BRIDGE CAN BE USED TO MEASURE RESISTANCE FROM TENS TO A FEW HUNDREDS CORRECTLY WHEATSONE BRIDGE CAN BE USED TO...
- Q Four identical cells each of e m f 2 V are joined in parallel providing current to an external circuit consisting two 15 2 resistors joined in parallel The terminal...
- Q 58 Calculate the equivalent resistance between points A and B in the following circuit 1 75 5 22 ww 22 www 1 92 222 102 www A www B 202...
- Q A Galvanometer can be converted into ammeter by connecting Question Type Single Correct Type 1 2 3 4 Low resistance in series High resistance in parallel Low resistance in parallel...
- Q 39 When a current I flows through a wire the drift velocity of the electrons is V When current 21 flows through another wire of the same material having double...
- Q Aakash Institute 49 In an electrostatic machine a belt of width w having a surface charge density o travels with velocity v As the belt passes a certain point all...
- Q 3 Current of 3 A flows from D to C 4 Both 2 and 3 2 A heater coil connected across a given potential difference has power P Now the...
- Q In the given figure initially all switches are open and the capacitor has charge q At t 0 switch S is closed alongwith S or S or both The values...
- Q For the circuit shown in figure potential difference of 12 V is applied across AB 292 E wwww 2925 21 www wwwwwwwwwww 32 D 20 F 12 192 ww 2523...
- Q Figure shows a network of eight resistors e equal to 20 connected to a 3V battery of negligible internal resistance The current in the circuit is A 3V www b...
- Q A potentiometer wire AB is 2 m long and has total resistance of 10 2 Galvanometer shows zero deflection at C when switch S is closed and at point D...
- Q In Figure 1 the battery has negligible internal resistance and E 45 0 V R R2 3 60 2 and R4 3 90 0 What must the resistance R3 be...
- Q 44 A beam of electrons moving at a speed of 10 6 m s along a line produces a current of 1 6 10 Then the number of elections in...
- Q 5 A potentiometer wire of length 10 m and resistance 102 per metre is connected in series with a resistance box and a 2 volt battery If a potential difference...
- Q a 4 5 A millivoltmeter of 25 mV range is to be converted into an ammeter of 25 A range The value in ohm of necessary shunt will be b...
- Q 63 An electrical cable of copper has just one wire of radius 9 mm Its resistance is 5 ohm This single copper wire of the cable is replaced by 6...
- Q 72 You are given a wire of length 100 cm and linear resistance of 1 ohm cm If it is cut into two parts sos that when they are in...
- Q 9 The temperature coefficient of resistance of conductor varies as a T 372 27 If Ro is resistance at T 0 and R is resistance at T then 1 R...
- Q 1 A cell of e m f E and internal resistance r is connected to an external resistance R The variation of potential difference V across the resistance Ras a...
- Q 45 In the circuit given below all resistances are of values 5 ohm each The currents i and i given that the e m f of the cell is 11V...
- Q 47 In the circuit R 400 ohm and R 200 ohm If the resistance of the voltmeter V 10 000 ohm Then the voltmeter reading is R R ATT
- Q 5 The electrical resistance of a mercury column i a cylindrical container is R The mercury i poured into another cylindrical container with hal the radius of cross section The...
- Q 30 Three wires having resistances 122 222 and 62 are joined in parallel across a battery If a current 0 1A flows through 62 resistor the total current drawn by...
- Q Two wires have their lengths in the ratio 1 3 diameters in the ratio 2 3 and their materials have specific resistances in the ratio 2 1 Then the ratio...
- Q 1 A carbon filament has resistance of 12002 at 0 C What must be the resistance of a copper filament connected in series with carbon so that the combination has...
- Q Two large non conducting plates having surface charge densities to and o respectively are fixed d distance apart A small test charge q of mass m is attached to two...
- Q 24V 4mH 00000 R W 50002 In given circuit switch is in position a for what value of R will the circuit have a time constant of 10 s 1...
- Q A conducting wire of cross sectional area 1 cm has 3 x 1023 charge carrier per m If wire carries a current of 24 mA the drift velocity of carriers...
- Q 56 It is required to construct a resistor of 80 ohm resistance having temperature coefficient of resistance 0 0021 C For this purpose wires of two materials of proper cross...
- Q The circuit below is made up using identical light bulbs The light bulbs of maximum brightness of the following will be EQ DQ 1 3 4 Correct Answer 2 Your...
- Q For the circuit shown in figures what is the current flows from b to a when a and b are short circuited 2 kn B V IBCBE PORC B 0...
- Q 77 The metre bridge shown is in balance position P with of galvanometer and cell will the bridge work If yes what will be balanced condition NEET 2019 ODISHA L...
- Q A parallel combination of following cells is connected to an external load If all the cells are connected in same polarity then the value of resistance of the external load...
- Q 500 10 MQ 34 A uniform wire of resistance 92 is joined end to end to form a circle Then the resistance of the circular wire between any two diametrically...
- Q Question No 13 A galvanometer of resistance 50 02 gives full scale deflection at 3 mA current What should be value of shunt so that it can measure a current...
- Q The reading of a high resistance voltmeter when a cell is connected across it is 4 2 V When the terminals of the cell are also connected to a resistance...
- Q 5 4 0 5 15 20 A t s 2 A vehicle is traveling at an initial speed va of 20 mi h when the driver attempts to accelerate as...
- Q A cell of e m f 4 V and of negligible internal resistance is connected in series with a potentiometer wire of length 400 cm The e m f of...
- Q 58 There is an infinite wire grid with cells in the form of equilateral triangles The resistance of each wire between neighboring joint connections is R The net resistance of...
- Q bridge experiment the null point obtained at N The value of unknown resistance will be 1 60 S R 102 X www 40 cm N E K 2 40 Q
- Q 12 V 1 2 1 A m R Figure 3 9 Given the circuit in Figure 3 9 what resistance is required to draw the specified current 11 40 5...
- Q A circuit shown in figure has resistance R and R At what value of the resistance Rx will the therma power generated in it be practically independent of small variations...
- Q 4 Angular momentum 33 Two pith balls having charge 3q and 2q are placed at distance of a from each other For what value of charge transferred from 1 ball...
- Q In the circuit given here the points A B and C are 70 V zero and 10 V respectively Then B 1092 A WW D www www 2002 300 C...
- Q When no current is passed through a conductor 1 The free electrons do not move 2 The average speed of a free electron over a large period of time is...
- Q The intensity of the electric field required to keep a water drop of radius 10 cm just suspended in air when charged with one electron is approximately 1 260 V...
- Q A cell of emf E and internal resistance r is connected across a variable external resistance R a Plot a graph showing variation of E with R b Plot a...
- Q The current delivered by battery in the following circuit at steady state condition is diode and inductor are ideal 1 R 3 T www R ww 2 eeeee 2 R
- Q An electrical device is designed to operate from 240 volt line to obtain the 960 watt of power that it needs The available power supply is 120 V line therefore...
- Q A potentiometer wire has length 8 m and resistance 16 2 The resistance that must be connected in series with the wire and an accumulator of emf 4 V so...
- Q 1012 Current Electricity 3 For the circuit shown the charge on the capacitor will be MP PMT 20 UNIVERSAL BOOK DEPOT 1960 a CE CER C HH E R www...
- Q Negative Marks 1 In all other cases In the circuit shown find the value of current I A 4 amp B 2 amp 20V Hly 552 20 ZV H 2V...
- Q A storage battery of emf 8 0 V and internal resistance 0 52 is being charged by a 120 V dc supply using a series resistor of 15 5 22...
- Q 22 20 wire is connected between points A and B then the current in the wire AB will 15V 192 www J2V 3 x 1 0 2 452 ww 1216...
- Q 2 Page view A Read aloud Draw A battery has emf E a x where a and are constant and is connected as shown to a potentiometer If initially x...
- Q Two cells of same emf E but internal resistance r and rare connected in series to an external resistor R Fig 3 7 What should be the value of R...
- Q There are m rows of cells each with n identical cells connected in series Each cell has an internal resistancer The combination is connected to an external resistance R What...
- Q the correct statement 0 1 Point A capacitor can conduct a dc circuit but not an inductor In a dc circuit the inductor can conduct but not a capacitor In...
- Q e are two small uncharged spheres placed at a distance of 1 m from each other N number of electrons are transferred from one sphere to her The force between...
- Q The circuit shown consists of two resistances of values R and 3R two identical capacitors each of capacitances C two identical inductors each of inductance L and ideal battery of...
- Q A weight is hung over a pulley and attached to a string composed of two parts each made of the same material but one having four times the diameter of...
- Q For the network of resistance shown in the hg the equivalent resistance of the network between the points A and B is 180 The value of unknown resistance Ris B...
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