Question

A series circuit contains a 30 Ω resistor, a 20 Ω resistor, and a 10 Ω resistor. The power supply provides 100 V to the circuit.

The current in the 10 Ω resistor, to two significant figures, is
A.

Answer 1

The correct answer is 1.7 Amps.

Answer 2

The current in the 10 ohm resistance is 1.67 A.

Step-by-step explanation:

Given that,

Voltage v = 100 V

A series circuit contains a 30 Ω resistor, a 20 Ω resistor, and a 10 Ω resistor.

`R =R_(1)+R_(2)+R_(3)`

`R = 30+20+10`

`R= 60\ ohm`

Using Ohm's law

The voltage of the circuit is the product of the current and resistance.

`V = I* R`

`I =(V)/(R)`

`I = (100)/(60)`

`I = 1.67\ A`

The current will be same in all resistance because all resistance in series.

Hence, The current in the 10 ohm resistance is 1.67 A.