Question

in the circuit shown in fig the reading of the volmeter v will be ​

Answer 1

consider 12v

Req = 300ohm

so

I = ,12/300= 0.004A

so in 100ohm

v = iR

v = 0.004 *100= 4v

Voltmeter reading is 4v

Answer 2

Answer:

Explanation:

Explanation:

In the circuit

V=12 V

Firstly we have to find equivalent resistance:

In series,simply resistances are added.

So,

Req=100+200

     =300 ohm

Then find current:

I= V/R

 =12/300

 =0.04 A

Since voltmeter is connected across 100 ohm resistor,So, reading show by voltmeter will be:

V=0.04 * 100

  =4 V

So,reading shown by voltmeter is 4 V

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