Question

Two resistances are connected in series as shown in the diagram
(a)What is the current through 5 ohm resistance?
(b)What is the current through R
(c)What is the value of R
(d)what is the value of V​

Answer 1

$\small \underline \green{\sf{ Answer :- }}$

Voltage across 5Ω resistor is V=10V

Current, I= R/ V

= 5/10

⟹ I=2A

Since resistance 5Ω and R are in series and hence current through both resistance is same.

Hence current through R is also 2A.

Now for R, potential difference is V=6V and I=2A.

Hence , R= V/I

= 6/ 2

⟹R=3Ω

Answer 2

Answer:  Voltage across 5Ω resistor is V=10V

Current, I=

R

V

​

=

5

10

​

⟹I=2A

Since resistance 5Ω and R are in series and hence current through both resistance is same.

Hence current through R is also 2A.

Now for R, potential difference is V=6V and I=2A.

Hence , R=

I

V

​

=

2

6

​

⟹R=3Ω

Explanation: the answer is  (d)what is the value of V​