2010 - WAEC Physics Past Questions and Answers - page 4
Which of the following electromagnetic wave has the longest wavelength?
The amplitude of a sound wave determines its
As the air column of length L in an air pipe decreases, the frequency of the sationary wave emitted
A positively charged glass rod is placed near the cap of a positively charged electroscope. The divergence of the leaf is observed to
Capacitors are used in the following devices, except
Use the diagram above to calculate the current, I.
Determine the potential difference. V across the parallel resistors
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
In the wiring of houses, the fuse is connected to the wire coloured
Which of the following factors does not affect the electric resistance of wire?