Waec Physics 2010 Past Questions and Answers

Question 36:

• WAEC 2010

A positively charged glass rod is placed near the cap of a positively charged electroscope. The divergence of the leaf is observed to

A. Decrease
B. Increase
C. Remain the same
D. Increase and collapse immediately

Question 37:

• WAEC 2010

Capacitors are used in the following devices, except

A. Water pumping machines
B. Ceiling fans
C. Electric irons
D. Television sets

Question 38:

• WAEC 2010

Use the diagram above to calculate the current, I.

A. 0.60A
B. 0.97A
C. 1.03A
D. 5.00A

Question 39:

• WAEC 2010

Determine the potential difference. V across the parallel resistors

A. 2.0V
B. 2.3V
C. 3.0V
D. 0.7V

Question 40:

• WAEC 2010

A galvanometer of internal resistance 50\(\Omega\) and full scale deflection of 20 mA is converted into a voltmeter by connecting a resistor of resistance 1950\(\Omega\) in series to it. Calculate the maximum voltage that can be read by the voltmeter

A. 20V
B. 30V
C. 38V
D. 40V