Question

A current of 0.2 A flows through a wire whose ends are at a p.d of 15V
Find
resistance
heat produced in 1 min

Answer 1

@Michele_Liano

Answer 2

we have to apply the Ohm's law, so the requested resistance R is:
\[\Large R = \frac{V}{I} = \frac{{15}}{{0.2}} = ...ohms\]

Answer 3

Yes
V = IR

Answer 4

75?

Answer 5

correct!

Answer 6

Yep
all the best

Answer 7

the heat energy E produced, is given by the subsequent formula:
\[\Large E = VI\Delta t = 15 \times 0.2 \times 1 \times 60 = ...Joules\]

Answer 8

180J

Answer 9

that's right!

Answer 10

yay

Answer 11

Thanks for all the help.

Answer 12

:) @rvc

Answer 13

thanks! @BlackDranzer

Answer 14

:) @Michele_Laino