Physics Past Questions and Answers

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?

An aluminum foil is placed across a beam of radiation from a radioactive source. Which of the following types of radiation will be stopped by it?