Posted by **Leo** on Sunday, June 17, 2012 at 11:10pm.

A car has a 12 volt battery. The engine has a resistance of 0.22 ohms. How many amps will be drawn from the battery when the key is turned?

- Physics -
**David E**, Sunday, June 17, 2012 at 11:27pm
V=IR

V= 12v

R= 0.22 ohms

I = V/R

= 12/0.22

=54.5 amps

- math -
**Nancy **, Sunday, June 17, 2012 at 11:28pm
E= I x R is the formula

the answer is .5454

I=amperes

R=ohms

E=volts

12volts/22

- math -
**Nancy **, Sunday, June 17, 2012 at 11:29pm
actually David is right. I forgot the decimal place from the 22 so it is 54.5 amps

- math -
**Leo**, Sunday, June 17, 2012 at 11:40pm
thank you

- math -
**Ushango**, Tuesday, February 23, 2016 at 10:13am
Three cells are connected. The external resistance of each cell is 2 ohms. The voltage of each cell is 1.5 volts. The resistance of the external circuit is 2.3 ohms. What is the circuit current to the nearest tenth ampere?

## Answer This Question

## Related Questions

- Math - I = E/R A car has a 12 volt battery. The engine has a resistance of 0.22 ...
- physics - If the filliament resistance in an automobile headlamp is 3 ohms, how ...
- Physics - Is the answer to this 4? If the filament resistance in an automobile ...
- Science - A 6.0 volt battery is hooked up to a light bulb, whose resistance is 3...
- science - Calculate the resistance in a circuit in which a 9-volt battery ...
- calc 1 - An electrical circuit switches instantaneously from a 3 volt battery to...
- Physics - I need to understand how to calculate the final 2 steps of this ...
- physics 2 - a certain 12v storage battery with an internal resistance of 12 ohms...
- Calculus - An electric circuit switches instantaneously from a 5 volt battery to...
- calculus - An electrical circuit switches instantaneously from a 3 volt battery ...

More Related Questions