Question

In the given circuit diagram, find the potential difference between point B and C​

Answer 1

Given:

A circuit diagram.

To find:

Potential Difference between B and C ?

Calculation:

The simplification of the circuit has been shown in the attached diagram. Now, let's calculate the net resistance.

• Since 4 ohm and 1.2 ohm is in series, net resistance will be algebraic addition.

$\therefore \: r = 4 + 1.2 = 6.2 \: ohm$

Now, current through the circuit be i:

$\therefore \: i = \dfrac{V}{r}$

$\implies \: i = \dfrac{13}{6.2}$

$\implies \: i = 2.09 \: amp$

Now, potential difference between B and C :

$\therefore \: V_{BC} = i \times r_{BC}$

$\implies\: V_{BC} = 2.09 \times 1.2$

$\implies\: V_{BC} = 2.5$

$\implies\: V_{BC} \approx \: 3 \: volts$

So, potential difference between B and C is approximately 3 volts.

Answer 2

Answer:

WHAT A CONFIDENCE  TO TAKE SCREENSHOT OF FTRE 2020 CLASS 8 QUESTION . ANYHOW ANSWER IS 3

Explanation:

NO EXPLAINATION FOR EXAM CHEATERS LIKE YOU , BETTER LEARN FOR CLASS I IE. THIS YEAR'S FTRE EXAM .