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Thursday, 30 July 2026
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Physics Past Questions and Answers

Jamb 1993 Physics Questions

Question 26:
A current carrying conductor experiences a force when placed in a magnetic field because the
  • A Conductor is magnetized
  • B Magnetic field of the current interacts with external magnetic field
  • C Force is due to the motor principle
  • D Electric field of the current interacts with the external magnetic field
View Answer & Explanation
Question 27:
A simple cell with mercury-amalgamated zinc electrode prevents
  • A Local actions
  • B Polarization
  • C Buckling
  • D Degradation
View Answer & Explanation
Question 28:
The terminal voltage of a battery is 4.0V when supplying a current of 2.0A, and 2.0V when supplying a current of 3.0A. The internal resistance of the battery is
  • A 0.5 \(\Omega\)
  • B 1.0\(\Omega\)
  • C 2.0\(\Omega\)
  • D 4.0\(\Omega\)
View Answer & Explanation
Question 29:
A current of 100mA passes through a conductor for 2 minutes. The quantity of electricity transported is
  • A 200C
  • B 50C
  • C 12C
  • D 0.002C
View Answer & Explanation
Question 30:
A parallel plate capacitor of area 10cm2 in vacuum has a capacitance of 10-2\(\mu\)F. What is the distance between the plates?(e[sub][/sub] = 9 x 10-12fm)
  • A 9 x 10<sup style='font-size: smaller;'>-13</sup>m
  • B 9 x 10<sup style='font-size: smaller;'>-7</sup>m
  • C 9 x 10<sup style='font-size: smaller;'>-3</sup>m
  • D 9 x 10<sup style='font-size: smaller;'>7</sup>m
View Answer & Explanation