Jamb Physics 2002 Past Questions and Answers

Question 41:

• JAMB 2002

From the generating station to each substation power is transmitted at a very high voltage so as to reduce

A. Hysteresis loss
B. Eddy current loss
C. Magnetic flux leakage
D. Heating in the cells

Question 42:

• JAMB 2002

The particle that is responsible for the nuclear fission in a nuclear reactor is

A. Neutron
B. Prton
C. Electron
D. Photon

Question 43:

• JAMB 2002

A transistor is used in the amplification of signals because it

A. Controls the flow of current
B. Consumes a lot of power
C. Allows doping
D. Contains electron and hole carriers

Question 44:

• JAMB 2002

The carbon-granules microphone works on the principle of change in

A. Inductance
B. Resistance
C. Capacitance
D. Voltage

Question 45:

• JAMB 2002

At what frequency would a capacitor of 2.5μF
used in radio circuit have a resistance of 250Ω

A. π/800 Hz
B. 800/π Hz
C. 200Ï€ Hz
D. 2000Ï€ Hz