Fill in the following blank with a suitable word: Ohm's law states a relation between potential difference and ____________
Fill in the following blanks with suitable words :
(a) Chemical equations are balanced to satisfy the law of ..........
(b) A solution made in water in known as an .............. solution and indicated by the symbol .......
(a) Fleming's Rule for the motor effect uses the.......... hand.
(b) A motor contains a kind of switch called a ............which reverses the current every half ..............