Physics Past Questions and Answers

Calculate the force acting on an electron of charge 1.5 x 10<sup style='font-size: smaller;'>-19</sup>C placed in an electric field of intensity 10<sup style='font-size: smaller;'>5</sup>Vm<sup style='font-size: smaller;'>-1</sup>

Capacitors are used in the induction coil to

A cell of emf 1.5V is connected in series with a 1Ω resistor and a current of 0.3A flows through the resistor. Find the internal resistance of the cell

Which of the following obeys ohms laws?

A house has ten 40W and five 100W bulbs. How much will it cost the owner of the house to keep them lit for 10 hours if the cost of a unit is 5N?