Two appliances a lamp with a resistance of 15 and a curling iron with a resistance of 20 are connected in parallel to a 120v source through a 2 resistor in series how much current passes through the circuit when both appliances are on?

11.3 A

Explanation:

First of all, we need to find the equivalent resistance of the two appliances in parallel, which is given by:

Then we know that these two appliances are connected in series to another resistor of

So the total resistance of the circuit is

And since we know the voltage of the source,

V = 120 V

We can now calculate the current in the circuit by using Ohm's law:

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.