Question

3. Current flows through a wire only when there is
a. Potential difference
b. Potential at one end is more than at the other end
between the ends of the wire
c. Work done in moving a charge
d. All of the above

4. The SI unit of Potential difference is
a. Volt
b. JA-15-1
C. JC-1
d. All of the above

5. The amount of work done in moving a charge of 2C across two points having a potential
difference of 24 V is
a. 50J
c. 24 J
b. 48J
d. 54J

6. The resistance of the wire when the length of the wire increases two times
a. Becomes 2 times
c. Becomes 3 times
b. Becomes 6 times
d. Becomes 4 times

​

Answer 1

Answer :-

3. Option A [ Potential difference ]

4. Option A [ Volt (V) ]

5. Option B

Explanation :- Work ( W) = ?

Charge (C) = 2 C

Potential difference (V) 24 V

V = W/Q

W = V × Q

W = 24 × 2

= 48 Joule (J)

6. Option A [ Becomes 2 times ]

Answer 2

hey mate

this is your answer

Q3.A

Q4. volt

Q5.

given

$q = 2c \\ v = 24v \\ then \\ v = \frac{w}{q} \\ w = v \times q \\ w = 24 \times 2 \\w = 48j$

Q6.Become 2 time

hope it will help you.

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