ICSE Class 10 Electric Charges and Fields — Mock Test

Free online mock test for Electric Charges and Fields (ICSE Class 10 Physics) — 93 competency-based questions with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.In the field-line picture, the magnitude of the electric field at a point is represented by:
   • A.The density of field lines (lines per unit area normal to them)
   • B.The length of each individual field line
   • C.The colour of the field lines
   • D.The total number of lines drawn in the figure
2. 2.If the distance between two fixed point charges is doubled, the electrostatic force between them becomes:
   • A.One-fourth of the original
   • B.One-half of the original
   • C.Four times the original
   • D.Unchanged
3. 3.Assertion (A): The electric field due to a charge Q is independent of the test charge used to measure it. Reason (R): The electric field is defined as the limit of F/q as the test charge q tends to zero.
   • A.Both A and R are true and R is the correct explanation of A
   • B.Both A and R are true but R is NOT the correct explanation of A
   • C.A is true but R is false
   • D.A is false but R is true
4. 4.Which of the following is NOT a property of electrostatic field lines?
   • A.They can form closed loops
   • B.They start at positive charges and end at negative charges
   • C.They are continuous curves without breaks in a charge-free region
   • D.Two of them never cross each other
5. 5.A uniform field E = 3 x 10^3 i N/C passes through a square of side 10 cm whose plane is parallel to the yz-plane. The flux through the square is:
   • A.30 N m^2/C
   • B.300 N m^2/C
   • C.3 N m^2/C
   • D.0.3 N m^2/C