Physics Past Questions and Answers

An equipment whose power is 1500W and resistance is 375 ohms would draw a current of

To convert an alternating current dynamo into a direct current dynamo, the

If a current carrying coil is mounted on a metal frame, the back e.m.f. induced in the coil causes

The electrochemical equivalent of platinum is 5.0 x 10^-7kgC^-1 to plate-out 1.0kg of platinum, a current of 100A must be passed through an appropriate vessel for

which of the following statements are TRUE of isotopes? i. isotopes of an element have the same chemical properties because they have the same number of electrons. ii. isotopes of elements are normally separated using physical properties. iii. isotopes of an element have the same number of protons in their nuclei.