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BITSAT Current Electricity PYQs with Solutions

36 previous year questions from Current Electricity (BITSAT Physics) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

36 questionsPhysics2009–2024Answers + solutions

About Current Electricity PYQs

Current Electricity has 36 previous year questions in the Quantrex Academy BITSAT Physics bank. The 36 questions in this list come from BITSAT (36), spanning 2009 to 2024. Each question opens on its own page with the options, the correct answer and the worked solution where available.

BITSAT Current Electricity PYQs with Solutions

About Current Electricity PYQs

Questions by year (this list)

Current Electricity questions with solutions

In the given circuit, E_1=E_2=E_3=2 V and R_1=R_2=4 Ω , then current flowing through the branch A B is

In the following circuit diagram, when 3 Ω resistor is removed, then equivalent resistance of the network

A conducting wire is stretched by applying a deforming force, so that its diameter decreases to 40 \% of original value. The percentage change in its resistance will be

A wire of resistance 160 Ω is melted and drawn in wire of one-fourth of its length. The new resistance of the wire will be

Five cells each of emf E and internal resistance r send the same amount of current through an external resistance R whether the cells are connected in parallel or in series. Then

Ratio of thermal energy released in two resistor R and 3 R connected in parallel in an electric circuit is :

The resistance of a wire is 5 Ω . It's new resistance in ohm if stretched to 5 times of its original length will be :

In the arrangement shown in figure, when the switch S_2 is open, the galvanometer, shows no deflection for l=50 cm when the switch S_2 is closed, the galvanometer shows no

An electric current I enters and leaves a uniform circular wire of radius r through diametrically opposite points. A charged particle q moves along the axis of circular wire

A wire of a certain material is stretched slowly by ten per cent. Its new resistance and specific resistance become respectively:

A moving coil galvanometer has resistance of 10 Ω and full scale deflection of 0.01 A . It can be converted into voltmeter of 10 V full scale by connecting into resistance of

Two wires A and B of the same material, having radii in the ratio 1: 2 and carry currents in the ratio 4: 1. The ratio of drift speed of electrons in A and B is

Determine the current in 2 Ω resistor.

The value of current I as shown in the given circuit diagram is

An ammeter of resistance 1. 5Ω can measure currents upto 1A . The value of shunt resistance to measure current upto 4A is

A carbon resistor of (56 ± 5. 6)kΩ is to be marked with rings of different colours for its identification. The colour code sequence will be

In the circuit given below, the value of resistance X , when the potential difference between the points B and D is zero, will be

In the given circuit, it is observed& that the current I is independent of the value of resistance R _ 5 . Then, the resistance value must satisfy

The resistance of a wire at 20 ° C is 20Ω and 500 ° C is 60Ω . At which temperature, its resistance will be 25Ω ?

In the circuit shown, the heat produced in 5Ω resistor is 10cals^ - 1 . The heat produced per sec in 4Ω resistor will be

In the circuit shown in the figure, find the current in 45 Ω . <img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAQEAAACnCAYAAAAR3um6AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAA

The drift velocity of electrons in silver wire with cross-sectional area 3.14 × 10^ -6 m^ 2 carrying a current of 20 A is. Given atomic weight of Ag=108, density of silver =10.5 ×

Two resistances at 0^ ^ ∘ C with temperature coefficient of resistance α_ 1 and α_ 2 joined in series act as a single resistance in a circuit. The temperature coefficient of their

The resistance of a wire is R . It is bent at the middle by 180^ ^ ∘ and both the ends are twisted together to make a shorter wire. The resistance of the new wire is

A constant voltage is applied between the two ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if

A wire X is half the diameter and half the length of a wire Y of similar material. The ratio of resistance of X to that of Y is

For the circuit (figure), the current is to be measured. The ammeter shown is a galvanometer with a resistance R_ G =60.00 Ω converted to an ammeter by a shunt resistance r_ s

What should be the characteristic of fuse wire?

In the circuit shown in figure potential difference between points A and B is 16 V . the current passing through 2 Ω resistance will be

Three voltmeters A, B and C having resistances R, 1.5 R and 3 R, respectively, are connected as shown. When some potential difference is applied between X and Y, the voltmeter

A letter'A' is constructed of a uniform wire with resistance 1.0 Ω per cm , The sides of the letter are 20 cm and the cross piece in the middle is 10 cm long. The apex angle is

Calculate the effective resistance between A and B in following network.

The power dissipated in the circuit shown in the figure is 30 Watts. The value of R is

Which of the following quantities do not change when a resistor connected to a battery is heated due to the current?

The length of a potentiometer wire is ℓ . A cell of emf E is balanced at a length ℓ / 3 from the positive end of the wire. If the length of the wire is increased by ℓ / 2. At what

An ammeter reads upto 1 ampere. Its internal resistance is 0.81 ohm. To increase the range to 10 A the value of the required shunt is

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