Physics question and answers for December 18, 2023
- Q 3 When negative charge given to soap bubble it a expands b contracts c may expand or contract di remains same
- Q 4 A Bis 2r 3 www 1 r 3 4r 3 www www r www www 2 2r 4 7r wwww wwww B
- Q Charge q and q are placed at points A and B respectively which are a distance 2L apart C is the mid point between A and B The work done...
- Q 6 The effective resistance between points A and Bis a R A b R3 R wwwww C 2R 24 2R wwwwww c 2R 3 B d 3R 5
- Q Consider the circuit shown in the figure Given E 5 Volts and R 1 22 Take Vo 0 volt P Q S Codes A B C S 2 3 4...
- Q An electric cable of copper has just one wire of radius 9 mm Its resistance is 5 ohm This single copp of cable is replaced by 6 different well insulated...
- Q A wire of resistance 0 1 22cm 1 is bent to form a square ABCD of side 10 cm A similar wire is connected between the corners B and D...
- Q IBC IDC IDD IBB IAD IA B 1 2 A A D Example 155 Twelve wires each having a resistance of r re connected to form a skeleton cube find...
- Q Which switch in the circuit Fig 4 88 when closed will produce short circuiting a A c C A B b B d none of the above Lamp Resistance
- Q I In the given circuit the potential of the point E is a zero b 8 V c d 3 V A B 8 V Ewwww 10 www 592 WD...
- Q in the network shown in given figure find the current I through the 10 V battery A B 10 V 1 22 wwwww HA 52 wwwww 1 D 3Q www...
- Q 4 In the diagram given alongside the potential difference across PR is 14 volts Calculate a the equivalent resistance of the network QR b the current flowing through PQ c...
- Q A group of N cells each of whose emf varies directly with the internal resistance as per the equation E 1 5 r are connected as shown in the figure...
- Q 49 The effective resistance between A and B in the network shown is 73 A 30 9 1 34 22 3 17 Q 90 92 40 B ww 30 Q...
- Q D Twelve equal resistances each of 2 2 form the edges of a cube If a 2 volt battery having internal resistance 0 12 is connected between two adjacement corners...
- Q but from N to P whereas through R it flows from P to N rough the e The electrolyte through which a current flows has resistance r called the internal...
- Q 4 A resistance wire connected in the left gap of a metre bridge balances a 10 resistance in the right gap at a point which divides the bridge wire in...
- Q 16 A circuit element is placed in a closed box At time t 0 a constant current generator supplying a current of 1 A is connected across the box Potential...
- Q he galvanometer in the circuit of figure reads zero calculate the value of the resistor R in ko assuming that the 12 V source has negligible internal resistance Pesonance 6...
- Q 2 A nichrome wire 1 m long and 1 mm in cross section area draws 4 ampere at 2 volt The resistivity of nichrome is a 1 x 10 722...
- Q 24 The effective resistance be for the following network is 492 P A 1 12 392 S C 122 www R ww 69 www 39 B 21 D 21 www...
- Q 26 The power dissipated in 3n resistance in the 26 following circuit is R 4 5 V 1Q A 0 75 W C 1 W 202 3Q 60 RED P...
- Q E R www 3R www ww 4R 2R ww I Given R 1 kn E 12V 1 1 9 mA 2 2 9 mA 1 19 mA 2E
- Q 6 023 x 1023 g mol Find the total negative or positive charge on a 2 g silver coin The atomic number and atomic mass of silver is 47 and...
- Q dielectric of dielectric constant 3 energy stored in the capacitors to the final total energy stored is 5 In the given circuit the potential difference across the 6 F capacitor...
- Q In an experiment to verify Ohm s law a graph has been obtained between voltage and current as shown below The resistance is V volt 1 0 0 5 0...
- Q Moving Charges and Ma A long straight conductor is bent in form of a right angle as show p q where p 0 q 0 is Moi p q 4...
- Q In the circuits shown below the readings of the voltmeters and the ammeters will be 10 12 www HH 10 V Circuit 1 a V V and i 1 b...
- Q 78 Find the reading of ammeter in figure 2 3 A b 4 A c 1 5 A d 6 A Parratell 222 ww 202 ww HH 3 V 5...
- Q 25 In the given circuit all resistors are of R ohm each If a wire is connected between C and B then the ratio of equivalent resistance between AB of...
- Q Terence between points x and y in the circuit shown below is A 1 10 volt 3 30 volt 50 2 X www 50 22 www 30 Q y M...
- Q Calculate equivalent resistance between the points A and B if A B 202 6 www 22 4 Q www tim www 4 52 422
- Q Resistance R in the circuit has to be chosen such that maximum power consumed across it in that case the Power consumed by R A 1 W 10V M 20...
- Q What should be the bill for the month of March for a heater of resistance 60 5 2 connected 220 V mains The cost of energy is Rs 2 per...
- Q Q 49 In the circuit shown in the figure the neon lamp lights up if potential difference across it becomes 60 V and goes out if the potential difference falls...
- Q 25 Which of the following equations is Kirchhoff s first rule as applied to the circuit given below 6 V 2 6 V 02A 13 M 209 12 20 9...
- Q 04 X material of the ong Answer Type Question 24 a Define resistivity Write an expression for the resistivity of a substance Give the meaning of each symbol which occurs...
- Q 39 If power consumptions in R R R3 are the same then what will be the relation between them ww R 1 R R R3 2 R R3 2R 3...
- Q ces the thermoco an e m f of 40 V C in the linear range of temperature A galvanometer of resistance 10 ohm whose sensitivity is 1 V div is...
- Q R C uus 16 At t 0 charge on capacitor is q Now switch S is closed Heat loss in 3R is x x 10 J Then find the value...
- Q In the circuit PR the reading of the galvanometer is same with switch S open or closed Then A IR IG B Ip IG C lg IG D IQ IR...
- Q 8 A charge Q is placed at each of the two opposite corners of a square A charge q is placed at each of the other two corners If the...
- Q In the figure the numerical values denote 4 resistances in SI units The total resistance of the circuit between a b will be ww 1 12 ohms 3 15 ohms...
- Q 3 Resistances of b manner shown in adjoining figure With the current 0 5 ampere as shown in figure the potential difference Vp Vo is P 0 5 A 692...
- Q 1 The dimensionally correct expression for resistance R among the following is P electric power electric current t tim V voltage and E electric energy 1 R PI OBEYGR 2...
- Q 133 Which of the following graph represents the variation of resistivity p with temperature T for copper 1 P 2 P 3 P 4 P 2 T T T TS...
- Q Figure shows part of a circuit Calculate the power dissipated in 3 2 resistance What is the potential difference Vc VB C 192 12 V 5 A D 29 322...
- Q In the given circuit reading of ideal voltmeter is A 2 V B 4 V C 6 V D 8 V 8 V ww 20 40 20 40 20
- Q 106 In given figure the potentiometer wire AB has a resistance of 5 2 and length 10 m The balancing length AM for the emf of 0 4 V is...
- Q ors of 65 Equivalent resistance of the network between points A and B is 2 are arranged in a square as shown A M E LLOR So 3
- Q At what value of resistance x in the circuit shown will the total resistance between points A and B be independent of the number of cells A R www www...
- Q 8 The variation of terminal potential difference V with current flowing through a cell is as shown 3 V V in Volt cell are 6 A 1 in A The...
- Q Twelve wires each having equal resistance r are joined to form a cube as shown in figure 32 E20 Find the equivalent resistance between the diagonally opposite points a and...
- Q 15 For a cell a graph is plotted between the potential difference V across the terminals of the cell and the current I drawn from the cell The e m...
- Q The resistances in the two arms of the meter bridge are 5 2 and R2 respectively When the resistance R is shunted with an equal resistance then new balance point...
- Q 3 You are given resistance wire of length 50 cms and a battery of negligible resis tance In which of the following cases is largest amount of heat generated NCERT...
- Q 28 Consider all batteries are ideal batteries Power developed in 2022 resistance is 20 V 40 220 23 1 100 W 3 180 W 10 V 1022 40 V 30...
- Q f a current is passed in a spring it O Oscillates O Remains unchanged Gets compressed
- Q A small charged particle of mass m and charge q is suspended by an insulated thread in front of a very large conducing charged sheet of surface density of charge...
- Q 59 The current in the circuit shown below is 1 1 A 6 V 4 492 www www 492 49 www www 42 wwww 29 2 2 A
- Q The resistor in which the maximum heat is produced is given by B 30 D 120 A 20 C 452 492 69 12 Q2 3Q ww www 252
- Q In an ammeter 0 2 of main current passes through the galvanometer If resistance of galvanometer is G the resistance of ammeter will be CBSE AIPMT 2014 500 499 G...
- Q In the ladder network shown current through the resistor 3 is 4 A The emf V of the ideal battery Q is equal to 792 ww 802 C 50 www...
- Q 5 What is current supplied by cell in above figure T 22 10V H 20 20 5 b A 4 c 5 A d 2
- Q 16 Figure shows a part of a closed circuit If the current flowing through it is 2A what will be the potential difference between points A and B 2A O...
- Q Figure shows two conducting thin concentric shells of radii r and 3r The outer shell carries charge q Inner shell is neutral When the switch is now closed the charge...
- Q The current through a wire depends on time as 3t 2t 5 The charge flowing through the 2 of the wire in time from t 0 tot 2s cross section...
- Q The r m s value of current for one teric period in the above diagram which is plotted between i and t is A 1 2 A 4 2 3...
- Q 18 A potential difference of 2 5 V is applied across the faces of a germanium crystal plate The face area of the crystal is 1 cm and its thickness...
- Q A and B are at the same potential 56 In the given figure a balanced Wheatstone bridge is shown Now it is disturbed by changing P to 15 2 Which...
- Q 5 The value of drift speeds at cross sections 1 and 2 are V and V respectively in the conductor shown below in the shape of a truncated cone Which...
- Q 3 5 8 2 BEGINNER S BOX S respectively indicate inductance caporance and resistance Select the combination which does not have dimensions of frequency 1 1 RC Jav RA 1...
- Q A potential difference V is applied to a conducting wire of length I and diameter d How are the electric field E the drift speed vand the resistance R affected...
- Q You are given several identical resistances each of value R 10 22 and each capable of carrying a maximum current of 1A It is required to make a suitable combination...
- Q A cylindrical metal rod of length L and cross sectional area S is joined to an EMF source The drift speed of electrons in the rod is v If this...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!