Question

A current of 10A flows through a wire for 10s. If the potential difference of the wire is 15V, what will be the work done? ​

Answer 1

Answer:

1500 joules is the required answer.

Explanation:

According to the Question

It is given that ,

• Current, I = 10A
• Time taken ,t = 10s
• Potential Difference ,V = 15v

we need to calculate the work done by the current .

Firstly we calculate the amount of charge flow through the conductor in the given condition.

As we know the relationship between current , time and charge.

• I = Q/t

where,

I denote Current

Q denote charge

t denote time taken

Substitute the value we get

➻ 10 = Q/10

➻ Q = 10×10

➻ Q = 100c

Now, calculating the work done by the current.

• W = VQ

where,

W denote Work Done

V denote Potential Difference

Q denote Charge

Substitute the value we get

➻ W = 15×100

➻ W = 1500 J

• Hence, the work done will be 1500 joules.

Answer 2

Here Work done=Heat

• Current=I=10A
• Time=t=10s
• Potential difference=V=15V

We know

$\boxed{\sf Heat=VIt}$

$\\ \sf\longmapsto H=15\times 10\times 10$

$\\ \sf\longmapsto H=15\times 100$

$\\ \sf\longmapsto H=1500J$

Work done here is 1500Joules.