8 June, 14:30

# Cici uses a long extension cord to plug a lamp into a wall outlet in the next room. What effect will the extension cord have on the circuit?a. It will decrease the resistance of the circuit.b. It will increase the voltage of the outlet.c. It will increase the resistance in the circuit.d. It will decrease the voltage of the outlet.

+5
1. 8 June, 16:54
0
c. It will increase the resistance in the circuit.

Explanation:

Cici uses a long extension cord to plug a lamp into a wall outlet in the next room. What effect will the extension cord have on the circuit?

a. It will decrease the resistance of the circuit.

b. It will increase the voltage of the outlet.

c. It will increase the resistance in the circuit.

d. It will decrease the voltage of the outlet.

from ohms law, we can say that

L=RA/∀

L=length of the resistivity wire

A=surface area of the cable

R=resistance measured in ohms

∀=resistivity, which is the inverse of conductivity

from the equation given, it can be concluded that as length of the cable increases the resistance also increases.

c. It will increase the resistance in the circuit, i support