The resistance of a 40W car head lamp, drawing current from a 12V battery is ____.

Eschor

1 year ago

pls how did they get 3.6
cos I tried am getting 0.6

Eschor

1 year ago

sorry I got it now I made a mistake with the calculation!

Shulydave

1 year ago

Pls am confused...I got 3.3.....myschool pls be elaborate

vikky2244

1 year ago

the formula is V²/R

2AI

3 weeks ago

should be 12 x 12 not 12 x 2

joel772

2 months ago

its not ment to be 12x2
rather 12x12

Masuzy21

3 years ago

hmm i thought is 3.3... i don't understand the solution

Claire_nation101

4 years ago

rubbbishhhhhhh

hassanulbasri

3 months ago

p=v2/R
12*12=144
144/40=3.6

Joywwe

2 years ago

am very sorry to say this my school ,u are very wrong on this since you are asked for current and u know that power = Iv
I= P/V =40/12 =3.3