Physics question and answers for January 01, 2024
- Q Incandescent bulbs are designed by keeping in mind that the resistance of their filament increases v increase in temperature If at room temperature 100 W 60 W and 40 W...
- Q A galvanometer having a resistance of 20 2 and 30 divisions on both sides has figure of merit 0 005 ampere division The resistance that should be connected in series...
- Q An ideal battery of 4 V and resistance R are connected in series in the primary circuit of a potentiometer of length 1 m and resistance 5 92 The value...
- Q Find the reading of ammeter connected in the given circuit diagram resistance of ammeter 18 92 1 3 A 3 6 A 4Q 12 2 322 30 V A 622...
- Q In a meter bridge experiment S is a standard resistance R is a resistance wire It is found that balancing length is 25 cm If R is replaced by a...
- Q 29 Two resistances R and R are made of different materials The temperature coefficient of the material of R is a and that of the material of R is The...
- Q 3 BR BR 5 A battery of emf 40V and internal resistance 202 connected to a bulb of resistor 1892 What is efficiency of the battery 1 10 3 7...
- Q When an electric dipole is placed in uniform electric field a couple acts on it The moment of couple will be maximum when dipole is placed Along the direction of...
- Q In the circuit shown all the batteries and the ammeter are ideal and Ris an unknown resistance If the ammeter reads 2 A then which of these options is are...
- Q 20 In the meter reads 30 V when connected across tance Calculate what the same voltmeter reads when it is connected across 300 2 resistance www 300 2 60 V...
- Q Use the circuit diagram below to solve all the problems on this assignment RT 00 10V r unit 700 r2 2502 ww r5 800 r3 1002 1V M T4 740...
- Q What is the total resistance of the circuit shown below 360 ww 360
- Q What is the voltage on an electrical device if it has a total internal resistance of 1600 and 6 3A of current is flowing through it Desmos Calculator V unit
- Q What is the total resistance of the circuit shown below 113 Q www R HE 545 Q www R
- Q R www 420 V 120 V www R 116 V www R3 The circuit above has a power source of 420 V and 120 V is dissipated through R2 and...
- Q www ww R R This is a diagram of a series circuit Three resistors are connected to a 15 Volt battery The resistors have the same resistance such that R...
- Q What is the electric potential of a power supply if it is providing 120 Watts of power to a 980 Ohm applicance V unit
- Q A 24 3V battery is connected to a circuit with total resistance of 7950 which will cause how much current to flow Desmos Calculator
- Q What is the length of the material you are conducting electricity through if the resistance is 3855 2 the cross sectional area is 0 001 m and the resistivity is...
- Q If a particular resistor is using 336W because 5 9A is flowing through it then what is the voltage drop across that resistor Desmos Calculator V unit
- Q How much power is a circuit using if 2 2A is flowing through the power supply which is providing 178V Desmos Calculator P unit
- Q If a material has a resistivity of 1234 32 m a resistance of 315 2 and a length of 0 097 m then what is the cross sectional area of...
- Q Select all CORRECT factors that affect the resistance of a wire Material copper has lower resistance then steel for example Temperature heating a wire increases it resistance Length shorter wires...
- Q Students in a lab group have designed a circuit but they are having trouble determining whether it is a series parallel or mixed circuit All that they have available to...
- Q Question 29 3 points Listen A student has collected data from a simple circuit built with a 10 resistor a 20 resistor and a 302 resistor in order to identify...
- Q Listen A group of students is conducting an investigation of a circuit with one battery and one resistor in order to find the resistance of the resistor They have collected...
- Q A device that measures the amount of current in a circuit is a n O 1 potentiometer 2 resistor 3 voltmeter 4 ammeter
- Q Listen V IR E Pt Series Circuits VT V V V 1T 1 12 1 RT R R R 2 400 Amps P IV 1 67 Amps C rPt Parallel...
- Q at wires have lower resistance than skinny wires Question 34 1 point 4 Listen Comparing and contrasting DC and AC current please check all that are correct direct current electrons...
- Q Listen An ohm is a unit of 1111 which is equivalent to a n 1 resistance joule coulomb 3 2 power Newton meter power joule coulomb 4 power volt ampere...
- Q 17 20 3 5 21 18 24 27 30 33 36 Listen V IR E Pt Series Circuits V V V V 17 1 1 1 RT R R R...
- Q Time Left 1 29 41 ved Neftali Moreno Miranda Attempt 1 4 The brightness of the remaining light bulbs will not change Question 2 3 points 4 Listen Check all...
- Q A poli The diagram below shows a simplified schematic for an adjustable electric heating blanket The switch may be connected to point W X or Y depending on the desired...
- Q An engineering student is attempting to determine the currents through each branch of the circuit in the figure below The student has assumed the currents are in the directi the...
- Q The figure below shows with two batteries and three resistors The potential difference across the batteries and the resistance of each resistor is given in the figure 12 0 V...
- Q The figure below shows a combination of connected resistors between points a and b The resistance 12 0 Q www www 6 00 A A A W a What is...
- Q If electrical energy costs 0 12 per kilowatt hour how much do the following events cost a To burn a 100 W lightbulb for 24 h b To operate an...
- Q In a particular area of the country electrical energy costs 0 17 per kilowatt hour Round your answers in dollars to at least two decimal places a How much does...
- Q The figure below shows a battery connected to a circult The potential difference across the battery and the R 3 40 0 and V 5 00 V www www 5...
- Q 2 Adding resistors or light bulbs in series increases the total resistance and limits the current flowing through the circuit Voltage drops vary depending on the magnitude of the resistor...
- Q speed in radians per second of the rotating generator at the electrical plant and t is the time measured in seconds It is essential for electric generators to rotate at...
- Q Common household electric current is called alternating current because the current alternates direction within the wires The voltage V in a typical 115 volt outlet can be expressed by the...
- Q Four resistors are arranged in a circuit as shown There is a constant voltage Vacross the voltage source The current is 0 25 ampere a Find the equivalent resistance of...
- Q For the circuit of Fig 5 75 a Employ Norton s theorem to reduce the network connected to RL to only two components b Calculate the downward directed current flowing...
- Q The resistance of a wire is 10 2 Its length is increased by 10 by stretching The new resistance will now be a 1 20 b 12 220 c 13...
- Q 7 The current in a conductor varies with time t as 1 21 31 Where I is in ampere and t in seconds Electric charge flowing through a section of...
- Q When a galvanometer is shunted by 5 2 resistance deflection is reduced to 1 6th of the riginal value of galvanometer is further with a resistance of 1 2 deflection...
- Q 72 n identical capacitors in series are connected battery and at steady state the total energy st parallel across same source the total energy wo by the assembly is w1...
- Q has resistance R is given as a V E R r fetV E 1 r R high d Only the 10 If E is the emf of a cell of...
- Q 57 The transfer ratio of a transistor is 50 The input resistance of the transistor when used in common emitter configuration is 1000 22 For an a c input voltage...
- Q The resistance between P and Q in the given figure is wwwww A wwwww Only one correct answer www
- Q nr R 7 The maximum power dissipated in an external resistance R when connected to a cell of emf E and internal resistance r will be E E E a...
- Q 1 Refer the circuit shown in Fig 1 and find the value of 11 12 13 14 15 16 Ix VC1 VC2 and Vx 10 marks 10 ohm 50 V...
- Q 33 A square current carrying loop PQRS is placed in a uniform magnetic field which is directed along PS If the magnetic force on QP is F then the force...
- Q The value of the 3 resistances when connected in star connection is 10 ohm ww 5 ohm www 3 ohm Close 2 32ohm 1 22ohm 4 54ohm
- Q An inductor 20 mH a capacitor 100 uF and a resistor 50 22 are connected in series across a source of emf V 10 sin 314 t The power loss...
- Q In the given circuit a galvanometer with a resistance of 702 is converted to an ammeter by a shunt resistance of 0 050 the total current measured by this device...
- Q An electron moves in a circle of radius 7 cm with uniform speed 5 X 106 m se Find the electric current at a point on the circle Take 10...
- Q The charge flowing through a resistor R 2 Q varies with time as q 3 42 The heat produced in 2 second is about where q is in C and...
- Q A resistor is constructed as a hollow cylinder with inner and outer radii 0 5 cm 1 0 cm respectively and ra rb resistivity p 3 5 x 10 5...
- Q 3 a a b b 5 4 a a 5 b b 5 23 A mixed combination of 12 identical cells each having EMF 2V and internal resistance 30 are...
- Q A n p n transistor is connected in common emitter configuration in a given amplifier A load resistance of 8000 is connected in the collector circuit and the voltage drop...
- Q choose 16 In the box shown current i enters H and leaves at C If AB 6 Dc 2 3 HA Y 1GF 6 6 ch 08 the branch in...
- Q A uniform wire of resistance 15 Q is bent to form a circle The effective resistance between point X and Y is 030 020 2 40 7 50
- Q Resistances P and Q are approximately equal When R 4002 the bridge is balanced On interchanging P and Q the value of R for balance is 4052 Choose the closest...
- Q The reading of ammeter in the circuit shown in the figure is 492 492 www A 892 492 www 12 V O 3 A O 2A O 1 5 A...
- Q In the circuit shown in the figure the current I is 24N DIA 3Q D 0 2 wwwo 20 1Q 10 V 9V
- Q At temperature 23 C the resistance of a wire is 100 0 The temperature at which resistance becomes 104 is nearly Given temperature coefficient of resistance of material is 1...
- Q Find the voltage across 4 0 resistor for the circuit shown in figure A B 10 92 15 Q2 Only one correct answer C E 25 V 892 492 15...
- Q A diode of constant voltage drop of 0 4 V at all currents and a maximum power rating of 0 2 watt is connected with a resistor of resistance R...
- Q View In English The temperature coefficient of resistance of a wire is 0 00125 C At 300 K its resistance is one ohm The resistance of the wire will be...
- Q The equivalent resistance between the point A and B in the circuit shown in figure when switch S is closed is 622 ww A 020 060 40 030 www 392...
- Q A potentiometer having a wire 10 m long stretched on it is connected to a battery having a steady voltage A cell gives a null deflection point at 700 cm...
- Q In the arrangement shown in the figures all the bulbs have same resistance If bulb D gets fused then brightness of bulb B will Battery is ideal A B Increase...
- Q LEN Consider all batteries are ideal batteries Power developed in 2002 resistance is 20 VT 40 2 20 2 1 100 W 3 180 W 10 V 10 2 40...
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!