ICSE Class 10 Current Electricity — Mock Test

Free online mock test for Current Electricity (ICSE Class 10 Physics) — 90 competency-based questions with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.A wire of length 15 m and uniform cross-section 6.0 x 10^-7 m^2 has resistance 5.0 ohm. The resistivity of its material is:
   • A.2.0 x 10^-7 ohm m
   • B.1.2 x 10^8 ohm m
   • C.5.0 x 10^-7 ohm m
   • D.3.0 x 10^-6 ohm m
2. 2.A wire of resistance R is stretched uniformly to twice its length (volume conserved). Its new resistance is:
   • A.4R
   • B.2R
   • C.R/2
   • D.R/4
3. 3.Mobility of a charge carrier is defined as the:
   • A.drift velocity per unit electric field
   • B.electric field per unit drift velocity
   • C.current per unit area
   • D.charge per unit time
4. 4.A 100 W bulb is rated for a 200 V supply. The resistance of its filament at the operating temperature is:
   • A.2 ohm
   • B.400 ohm
   • C.0.5 ohm
   • D.200 ohm
5. 5.At balance in a Wheatstone bridge, the current through the galvanometer is:
   • A.zero
   • B.maximum
   • C.equal to the cell current
   • D.half the cell current