Current Electricity · Physics · BITSAT

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MCQ (Single Correct Answer)

1
Find the average value of current shown graphically from $ t=0 $ to $ t=2 \mathrm{~s} $.

BITSAT 2024 Physics - Current Electricity Question 2 English

BITSAT 2024
2
In the given circuit, $ E_{1}=E_{2}=E_{3}=2 \mathrm{~V} $ and $ R_{1}=R_{2}=4 \Omega $, then current flowing through the branch $ A B $ is

BITSAT 2024 Physics - Current Electricity Question 1 English

BITSAT 2024
3
In the following circuit diagram, when $ 3 \Omega $ resistor is removed, then equivalent resistance of the network

BITSAT 2024 Physics - Current Electricity Question 3 English

BITSAT 2024
4
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
BITSAT 2024
5

The power dissipated in the circuit shown in the figure $$40 \mathrm{~W}$$. The value of $$R$$ is.

BITSAT 2023 Physics - Current Electricity Question 5 English

BITSAT 2023
6

In the arrangement shown in figure, when the switch S2 is open, the galvanometer, shows no deflection for $$l$$ = 50 cm when the switch S2 is closed, the galvanometer shows no deflection for $$l$$ = 0.416 m. The internal resistance (r) of 6 V cell is

BITSAT 2022 Physics - Current Electricity Question 6 English

BITSAT 2022
7

A shunt is connected in parallel with a galvanometer. Why?

BITSAT 2021
8

BITSAT 2021 Physics - Current Electricity Question 10 English

In the following circuit, assuming point A to be at zero potential, then what is the potential at point B?

BITSAT 2021
9

In the circuit shown, if the 10 $$\Omega$$ resistor is replaced by a resistor of 15 $$\Omega$$, then what is the amount of current drawn from the battery?

BITSAT 2020 Physics - Current Electricity Question 8 English

BITSAT 2020
10

A moving coil galvanometer has a resistance of 60 $$\Omega$$ and it indicates full deflection on passing a current of 4.5 mA. A voltmeter is made using this galvanometer and a 4.5 k$$\Omega$$ resistance. The maximum voltage, that can be measured using this voltmeter, will be close to

BITSAT 2020
11

A potentiometer wire, 10 m long, has a resistance of 40$$\Omega$$. It is connected in series with a resistance box and a 4 V storage cell. If the potential gradient along the wire is 0.4 mV cm$$-$$1, the resistance unplugged in the box is

BITSAT 2020
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