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NEET Physics: Current Electricity. Chapter-wise Practice Questions and Test

Current Electricity is a Class 12 Physics chapter that carries about 6.9% of the Physics questions in NEET. Practise it with 57 questions covering 6 topics, each with an explanation.

Practise Current Electricity

Sets of 15 questions that adapt to your level, with an explanation for every answer.

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Topics covered in Current Electricity

How often Current Electricity has come up in NEET

Across the 13 previous year papers, Current Electricity had 46 questions, about 3.5 a year. The most in one paper was 5, in NEET 2020.

PaperQuestions from this chapter
NEET 20265
NEET 20253
NEET 20244
NEET 20235
NEET 20224
NEET 20214
NEET 20205
NEET 20193
NEET 20183
NEET 20172
NEET 20162
Re-AIPMT 20153
AIPMT 20143

Sample questions on Current Electricity with answers

8 questions from the practice bank, spread across the chapter's topics. The full set is in the app.

Question 1: EMF, Internal Resistance and Cell Combinations

Four identical cells of emf 1.5 V and internal resistance 0.5 Ω each are connected in parallel. The emf and internal resistance of the combination are:

  1. A 6 V and 2 Ω
  2. B 1.5 V and 2 Ω
  3. C 1.5 V and 0.125 Ω
  4. D 6 V and 0.125 Ω

Answer: C. 1.5 V and 0.125 Ω

Why: In parallel the emf stays the same, and the internal resistance falls to r/n.

Question 2: Kirchhoff's Laws

A cell of emf E and internal resistance r drives a current I through an external resistance R. Kirchhoff's loop rule gives:

  1. A E − Ir + IR = 0
  2. B E = Ir − IR
  3. C E + Ir + IR = 0
  4. D E − Ir − IR = 0

Answer: D. E − Ir − IR = 0

Why: The rise in potential across the cell is used up in the internal and external resistances.

Question 3: Ohm's Law and Resistance

The SI unit of electrical resistance is:

  1. A Ohm
  2. B Siemens
  3. C Farad
  4. D Henry

Answer: A. Ohm

Why: Resistance is measured in ohms (Ω), defined as volts per ampere. Siemens is the unit of conductance (1/resistance); farad measures capacitance; henry measures inductance.

Question 4: Potentiometer

The sensitivity of a potentiometer can be increased by:

  1. A using a thicker wire
  2. B increasing the current through the wire
  3. C increasing the length of the potentiometer wire
  4. D decreasing the length of the wire

Answer: C. increasing the length of the potentiometer wire

Why: A longer wire has a smaller potential gradient, so a small difference in emf corresponds to a larger shift of the balance point.

Question 5: Series and Parallel Combination of Resistors

Two resistors of 4 Ω each are connected in parallel. Their equivalent resistance is:

  1. A 2 Ω
  2. B 4 Ω
  3. C 8 Ω
  4. D 1 Ω

Answer: A. 2 Ω

Why: 1/R = 1/4 + 1/4 = 1/2, so R = 2 Ω.

Question 6: Wheatstone Bridge and Meter Bridge

In a meter bridge, a known resistance of 6 Ω is in the right gap. The balance point is 40 cm from the left end. The unknown resistance in the left gap is:

  1. A 9 Ω
  2. B 6 Ω
  3. C 4 Ω
  4. D 2.4 Ω

Answer: C. 4 Ω

Why: X/6 = l/(100 − l) = 40/60, so X = 4 Ω.

Question 7: EMF, Internal Resistance and Cell Combinations

A cell of emf 2 V and internal resistance 0.1 Ω is short-circuited with a wire of negligible resistance. The current is:

  1. A 20 A
  2. B 2 A
  3. C 200 A
  4. D 0.2 A

Answer: A. 20 A

Why: I = E/r = 2/0.1 = 20 A.

Question 8: Kirchhoff's Laws

A 12 V battery of negligible internal resistance is connected in series with 2 Ω and 4 Ω resistors. The current in the circuit is:

  1. A 6 A
  2. B 2 A
  3. C 1 A
  4. D 3 A

Answer: B. 2 A

Why: By the loop rule, 12 = I(2 + 4), so I = 2 A.

Practise all of Current Electricity
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Frequently asked questions

How many questions come from Current Electricity in NEET?

Current Electricity carries about 6.9% of the Physics questions in NEET. Across the 13 previous year papers on NeetVictory it appeared 46 times, about 3.5 questions a year.

Which class is Current Electricity from?

Current Electricity is a Class 12 Physics chapter in the NCERT syllabus.

Where can I practise Current Electricity questions for NEET?

NeetVictory has 57 practice questions on Current Electricity, each with an explanation, in sets of 15 that adapt to your level. This page shows a free sample.

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