Physics Past Questions and Answers

The diagram above represents the field pattern obtained by bringing the poles of two magnets together.The poles must be

A S-S poles
B S-N poles
C N-S poles
D N-N poles

Question 47:

The diagram above shows a meter bridge in which two of thee arms contain resistances R and 2â„¦. A balance point is obtained at 60cm from the left end , calculate the value of R

A 1.2â„¦
B 1.3Ω
C 3.0â„¦
D 6.0â„¦

Question 48:

The circuit diagram above contains four ammeters W, X, Y and Z, Which of the following statements about the ammeter readings is correct

A The reading of W is equal to that of Y and twice that of X
B The reading of Y is greater than that of Z
C The readings of W and Y are equal and each is greater than that of X
D The reading of Z is equal to the sum of the readings of Y and W

Question 49:

A capacitor of 10µF is connected across a cell of 12 volts as shown above, calculate the energy stored in the capacitor

A 7.2 x 10^-4J
B 1.4 x 10^-3J
C 1.4 x 10^-3J
D 1.2 x 10^-2J