NUST NET Physics — Electrostatics
Electrostatics is part of the FSc Physics course that NUST NET-Engineering draws on (Physics is 60 of the 200 MCQs). It breaks into 3 subtopics, and we hold 76 NET-pattern practice MCQs on it, each with a written explanation. Tap a subtopic below to practise just that.
Subtopics (3)
How Electrostatics is tested
Across the 8 NET-pattern papers on ParhaiKrlo, Electrostatics accounts for 27 questions. It appears in all 8, about 3.4 questions a paper. The heaviest was NUST NET Past Paper 07, with 4 questions.
| Paper | Questions |
|---|---|
| NUST NET Past Paper 07 | 4 |
| NUST NET Past Paper 08 | 4 |
| NUST NET Past Paper 05 | 4 |
| NUST NET Past Paper 06 | 3 |
| NUST NET Past Paper 03 | 3 |
| NUST NET Past Paper 04 | 3 |
| NUST NET Past Paper 01 | 3 |
| NUST NET Past Paper 02 | 3 |
Electrostatics MCQs from the NET-pattern papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · NUST NET Past Paper 07 · Electrostatics
If the distance between two point charges is doubled, the electrostatic force between them becomes:
- A.one-quarter
- B.half
- C.double
- D.four times
Show answer
Answer: A. one-quarter — F ∝ 1/r², so doubling r divides F by 4.
- Q2 · NUST NET Past Paper 08 · Electrostatics
The electric field inside a hollow, charged conducting sphere is:
- A.maximum at the centre
- B.zero
- C.equal to its value at the surface
- D.infinite
Show answer
Answer: B. zero — E = 0 inside a charged hollow conductor.
- Q3 · NUST NET Past Paper 05 · Electrostatics
Coulomb's law for the force between two point charges has the same mathematical form as:
- A.Ohm's law
- B.Hooke's law
- C.Newton's law of gravitation
- D.Faraday's law
Show answer
Answer: C. Newton's law of gravitation — Both are inverse-square laws: F ∝ q₁q₂/r² and F ∝ m₁m₂/r².