ICSE Class 10 Electricity and Magnetism — Mock Test (2027)

Free online mock test for Electricity and Magnetism (ICSE Class 10 Physics) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.Why is it necessary for a fuse wire to have a low melting point?
   • A.To melt and break the circuit when the current exceeds the safe limit
   • B.To increase the current flow in the circuit
   • C.To reduce the resistance of the circuit
   • D.To prevent overheating of the appliance
2. 2.How does the resistance of a metallic wire depend on its temperature?
   • A.Resistance decreases with an increase in temperature because electrons move faster.
   • B.Resistance increases with an increase in temperature due to greater thermal agitation of atoms hindering electron flow.
   • C.Resistance remains constant as temperature changes because the number of electrons stays the same.
   • D.Resistance decreases with an increase in temperature because atomic vibrations reduce collisions.
3. 3.Derive the expression for the equivalent resistance of two resistors connected in parallel. Which of the following correctly represents the equivalent resistance, R_p, of two resistors R₁ and R₂ in parallel?
   • A.R_p = R₁ + R₂
   • B.R_p = (R₁ × R₂) / (R₁ + R₂)
   • C.R_p = (R₁ + R₂) / (R₁ × R₂)
   • D.R_p = 1 / (R₁ + R₂)
4. 4.Two lamps, one rated 100 W, 220 V and the other rated 60 W, 220 V, are connected in parallel to a 220 V supply. What current is drawn from the supply line?
   • A.0.455 A
   • B.0.606 A
   • C.0.727 A
   • D.1.000 A
5. 5.Find the cost of operating an electric toaster for two hours if it draws 8 A current on a 110 volt circuit. The cost of electrical energy is ₹ 2.50 per kWh.