Post Utme Physics Past Questions and Answers

Question 171:

The north pole of a magnet can never be separated from the south pole because of a property known as ____________

A. Magnetic dipole.
B. Magnetic moment
C. Magnetic monopole
D. Magnetic quadrupole

Question 172:

If the distance between two points charges is increased by a factor of four, the magnitude of electrostatic force between them will be ____________

A. \(1 / 2\) of its initial value
B. \(1 / 4\) its initial value
C. \(1 / 16\) of its initial value
D. 4 times of Its initial value

Question 173:

The terminal voltage of a battery is \(4.0 \mathrm{~V}\) when \(r\) supplying a current of \(2.0 \mathrm{~A}\); and \(2: 0 \mathrm{~V}\) when supplying a current of \(3: 0 \mathrm{~A}\). The internal resistance of the battery is ____________

A. \(0.5 \Omega\)
B. \(1.0 \Omega\)
C. \(2.0 \Omega\)
D. \(4.00\)

Question 174:

The primary aim in high tension transmission is to ____________

A. Minimize electrical energy loses due to heat production
B. Increase the rate of energy transfers by using high voltage
C. Increase the current-in the wires
D. Generate electricity at high current and low voltage

Question 175:

Which of the following is required to convert milliammeter to ammeter?

A. A high resistance in Parallel
B. A low resistance in series
C. A low resistance in parallel
D. A high resistance in series