Question

Resistors of 500 ohm and 3000 ohm are placed in series with a 60 V supply. What will be the
reading on a voltmeter of internal resistance
2000 ohm, when placed across
(a) the 500 ohm resistor
(b) the 3000 ohm resistor?​

Answer 1

Answer:

120/17 V

720/17 V

Explanation:

Resistors of 500 ohm and 3000 ohm are placed in series with a 60 V supply. What will be the  reading on a voltmeter of internal resistance  2000 ohm

(a) when placed across   the 500 ohm resistor

1/(1/500 + 1/2000)

= 2000/(4 + 1)

= 400 Ω

400 + 3000 = 3400 Ω

I = 60/3400

Voltage reading = (60/3400 ) * 400 = 120/17 V

(b) when placed across   the the 3000 ohm resistor?​

1/(1/2000 + 1/3000)

= 6000/(3 + 2)

= 1200 Ω

500 + 1200 = 1700 Ω

I = 60/1700

Voltage reading = (60/1700) * 1200 = 720/17 V

Answer 2

Answer:

Explanation:

Solution given question