Question

6. Two resistors 300 0hm.400 ohm are connected in series to 130
power supply .Calculate the readings of a voltmeter of resistance 200 ohm when connected across:
(a) The two terminals of the first resistance
(b) The two terminals of the second resistance.​

Answer 1

Answer:

(a) 55.8 V

(b) 74.4 V

Explanation:

Equivalent resistance = 300+400 = 700 ohms

V = 130 V

I=V/R=130/700=13/70 A= 0.186 A

(a) V1= I×R1 =0.186×300 = 55.8 V

(b) V2 = I×R2 = 0.186×400 =74.4 V