Three 15 ohm resistors are connected in parallel to a 30 volt battery What is the equivalent resistance through the circuit?

Answer 1

You don't need the voltage to calculate that. Just use the product-over-sum formula (for two resistors):

R = (R1 x R2)/(R1 + R2)

Where R is the equivalent resistance, and R1 and R2 are the individual resistances.

Answer 2

When resistors are connected in parallel, you can calculate the equivalent resistance using the following formula:

1 / Req = 1 / R1 + 1 / R2 + 1 / R3

In your case, you have three 15-ohm resistors connected in parallel, so R1 = R2 = R3 = 15 ohms.

1 / Req = 1 / 15 ohms + 1 / 15 ohms + 1 / 15 ohms

Now, calculate the sum of the reciprocals:

1 / Req = (1/15) + (1/15) + (1/15) = 3/15

Now, invert both sides of the equation to find Req:

Req = 15 / 3

Req = 5 ohms

Answer 3

The equivalent resistance of three 15-ohm resistors in parallel is 5 ohms.

It doesn't matter what the voltage of the battery is, or even whether or not

they're even connected to a battery. They can be wrapped in cloth and stuffed

in a box in the back of a drawer in a dark room somewhere. Their equivalent

resistance is still 5 ohms.

Answer 4

5 ohms...

Answer 5

2 amps

Answer 6

15