Physics Past Questions and Answers

A wire of length 100 cm has a resistance of 10\(\Omega\). If its cross-sectional area is 0.005cm², determine its resistivity

A transformer has 400 turns of wire in the primary coil and 40 turns in the secondary col. If the input voltage is 150 volts. Calculate the magnitude of the output voltage

The circuit above illustrates a standard resistor R, voltage source E and a lamp L connected in series. If the temperature of R is increased, the brightness of the lamp will

The energy required to separate the nucleus in an atom completely is known as

Which of the following statements is the major advantage of nuclear fusion over nuclear fission?