Jamb Physics 2018 Past Questions and Answers

Question 36:

• JAMB 2018

In the diagram shown, If the south-poles of two magnets stroke a steel bar, the polarities at T and V will respectively be

A. North and south
B. South and south
C. North and north
D. South and north

Question 37:

• JAMB 2018

In homes, electrical appliances and lamps are connected in parallel because

A. Less current will be used
B. Less voltage will be used
C. Parallel connection does not heat up the wires
D. Series connection uses high voltage

Question 38:

• JAMB 2018

An object moves in a circular path of radius 0.5m with a speed of 1ms\(^{-1}\). What is its angular velocity?

A. 8rads\(^{-1}\)
B. 4rads\(^{-1}\)
C. 1rads\(^{-1}\)
D. 2rads\(^{-1}\)

Question 39:

• JAMB 2018

What effort will a machine of efficiency 90% apply to a load of 180N if its efforts arm is twice as long as its load arm?

A. 100N
B. 90N
C. 80N
D. 120N

Question 40:

• JAMB 2018

Calculate the effective capacitance of the circuit in the diagram given

A. 4μf
B. 3μf
C. 2μf
D. 1μf