Post Utme Physics Past Questions and Answers

Question 1:

1 farad is equivalent to ____________

A. 1 coulomb/volt
B. 1 volt/coulomb
C. 1 joules/coulomb
D. 1 ampere/sec
E. Volts per unit charge

Question 2:

A $0-10\mathrm{mA}$ galvanometer with a coil resistance of $30\mathrm{ohm}$ can be converted to a 0-10A ammeter by using

A. $0.030hm$ series resistor
B. 9.99ohm shunt resistor
C. $0.030hm$ shunt resistor
D. $9.99\mathrm{ohm}$ series resistor

Question 3:

A battery has an internal resistance of 4 and an emf of $12\mathrm{V}$. The terminal voltage when a load of $20\mathrm{\Omega }$ is connected across it is ____________

A. 4
B. $10\mathrm{V}$
C. $20\mathrm{V}$
D. $2\mathrm{V}$

Question 4:

A conducting sphere has a net charge of ${4.810}^{17}\mathrm{C}$. What is the approximate number of excess electrons on the sphere if the fundamental natural charge is $-1.6\times {10}^{-1y}C$ ?

A. 100
B. 300
C. 200
D. 400

Question 5:

A magnet cannot be demagnetized by ____________

A. Heating
B. Hammering
C. Chemical treatment
D. The use of solenoid through which an alternating current is flowing