iCON Education - Current Electricity BITSAT Test

Question 1: Palette 1/11

BITSAT 2024 MCQ

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

BITSAT 2024 Physics - Current Electricity Question 2 English

3 A

5 A

10 A

4 A

Question 2: Palette 2/11

BITSAT 2024 MCQ

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

zero

$ 2 A $ from $ A $ and $ B $

$ 2 A $ from $ B $ to $ A $

$ 5 A $ from $ B $ to $ B $

Question 3: Palette 3/11

BITSAT 2024 MCQ

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

increases

decreases

remains same

None of these

Question 4: Palette 4/11

BITSAT 2024 MCQ

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

$ 0.9 \% $

$ 0.12 \% $

$ 1.6 \% $

$ 0.5 \% $

Question 5: Palette 5/11

BITSAT 2023 MCQ

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

20$\Omega$

15$\Omega$

5$\Omega$

30$\Omega$

Question 6: Palette 6/11

BITSAT 2022 MCQ

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

2 $\Omega$

3 $\Omega$

5 $\Omega$

9 $\Omega$

Question 7: Palette 7/11

BITSAT 2021 MCQ

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

To prevent galvanometer from strong current

To convert galvanometer into ammeter

To increase the range of ammeter

All of the above

Question 8: Palette 8/11

BITSAT 2021 MCQ

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?

1 V

2 V

4 V

3 V

Question 9: Palette 9/11

BITSAT 2020 MCQ

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

100 A

10 A

1 A

2.4 A

Question 10: Palette 10/11

BITSAT 2020 MCQ

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

21 V

20.5 V

20 V

19.5 V

Question 11: Palette 11/11

BITSAT 2020 MCQ

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

220 $\Omega$

360 $\Omega$

760 $\Omega$

848.3 $\Omega$