# Resistance?

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`1.) In this problem, you will calculate the basic quantities in a simple electric circuit.

A 83 Ω resistor and a length of wire of resistance 18 Ω are connected in series across a 57 V power supply.

Calculate the current flowing in the circuit.

Give your answer in Amps

2.) Calculate the power dissipated in the 83 Ω resistor..

Give the answer in Watts.

`1.) In this problem, you will calculate the basic quantities in a simple electric circuit.

A 83 Ω resistor and a length of wire of resistance 18 Ω are connected in series across a 57 V power supply.

Calculate the current flowing in the circuit.

Give your answer in Amps

2.) Calculate the power dissipated in the 83 Ω resistor..

Give the answer in Watts.

##### 1 Answer

#### Answer:

1.)

2.)

#### Explanation:

The total resistance of the circuit is:

The current in the circuit is the source voltage divided by the total resistance:

The power dissipated by the resistor is the square of the current through it multiplied by the resistance of the resistor: