Electrical engineering mcq question

01․ Which of the following quantities consists of S.I. unit as Hertz?

 Charge

 Force

 Frequency

 Power

02․ Which one of the following units is a fundamental unit?

 Newton

 Ampere

 Watt

 Joule/sec

03.Which one of the following units is a fundamental unit?

 Newton

 Ampere

 Watt

 Joule/sec
04.if the sheet of bakelite is inserted between the plate of capacitor the plate of an air capacitor then capacitance will be
ans increases