alleryStart learning →The SI unit of electric charge is the:
- volt
- ampere
- coulomb
- ohm
Show answer and solution
Correct answer: C. coulomb
Charge is measured in coulombs (C). 1 C = 1 A·s.
The fundamental unit of charge is e = 1.6 × 10⁻¹⁹ C (proton/electron magnitude).
Indian Navy SSR Static Electricity — practice questions
Explore 28 free Static Electricity questions in Indian Navy SSR Physics. Open each question or exercise to read its content, reference answers and available explanation.
Practise Static Electricity with Quill →Static Electricity questions and exercises with answers
Showing questions 1–28 of 28.
The SI unit of electric charge is the:Read the answer and worked solution →Number of charges that can be enclosed in a Gaussian surface in vacuum:Read the answer and worked solution →For a spherical conductor of radius R carrying charge Q, the potential AT THE SURFACE equals:Read the answer and worked solution →3 capacitors of 6 µF each in PARALLEL: total capacitance:Read the answer and worked solution →Electric field inside a spherical cavity in a uniformly charged conductor is:Read the answer and worked solution →Order the atomic models in this chapterRead the answer and worked solution →True or false: Rutherford's two difficultiesRead the answer and worked solution →Which model does this belong to?Read the answer and worked solution →Complete Bohr's first postulateRead the answer and worked solution →True or false: line spectraRead the answer and worked solution →Charge and neutralityRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Tap every problem Bohr's model was built to solveRead the answer and worked solution →Flip and pair: model with its pictureRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Strength or weakness?Read the answer and worked solution →Complete the size of the nucleusRead the answer and worked solution →Reading the models backRead the answer and worked solution →Bohr's postulatesRead the answer and worked solution →Explained, or left unexplained?Read the answer and worked solution →True or false: the nucleusRead the answer and worked solution →Order the argument: why Rutherford's atom should collapseRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Assertion and reason: modelsRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →Flip and pair: problem with the model that solved itRead the answer and worked solution →
Worked practice questions
Number of charges that can be enclosed in a Gaussian surface in vacuum:
- 1
- Up to 10
- Any number
- Zero
Show answer and solution
Correct answer: C. Any number
Gauss's law works for ANY closed surface enclosing any amount of charge.
The total flux equals q_total/ε₀ regardless of how the charges are distributed inside (point, line, sphere, etc.).
For a spherical conductor of radius R carrying charge Q, the potential AT THE SURFACE equals:
- 0
- kQ/R²
- kQ/R
- 2kQ/R
Show answer and solution
Correct answer: C. kQ/R
V_surface = kQ/R. Same as the field at the surface times R. Note: potential INSIDE a conductor is uniform = surface value; field inside = 0.
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