Loading…
DemoYou're viewing a demo — no data is saved
Free trialStart free trialQuiz results
IQ-26-025 · Weekly MCQ test — Electrostatics
No suspicious signals.
Flagged at 40+ points or when the focus-loss limit is exceeded.
Not reviewed yet.
| # | Question | Answer | Marks |
|---|---|---|---|
| 1 | The capacitance of a parallel-plate capacitor increases when: | D. The area of the plates is reducedCorrect: C. A dielectric is placed between the plates | 0 / 2 |
| 2 | According to Gauss's law, the electric flux through a closed surface depends on: | B. The charge enclosed by the surface | 2 / 2 |
| 3 | If the distance between two point charges is doubled, the Coulomb force between them becomes: | D. One-fourth | 1 / 1 |
| 4 | What is the SI unit of electric charge? | A. Coulomb | 1 / 1 |
| 5 | Electric field intensity at a point is the force per unit: | B. Positive test charge | 1 / 1 |
| 6 | The potential gradient at a point in an electric field is equal to: | A. The surface charge densityCorrect: C. The negative of the electric field intensity | 0 / 1 |
| 7 | The time constant of a series RC circuit is: | D. RC | 1 / 1 |
| 8 | One electron volt (1 eV) is equal to: | A. 1.6 × 10⁻¹⁹ J | 1 / 1 |
Chose D — The area of the plates is reduced
Chose B — The charge enclosed by the surface
Chose D — One-fourth
Chose A — Coulomb
Chose B — Positive test charge
Chose A — The surface charge density
Chose D — RC
Chose A — 1.6 × 10⁻¹⁹ J