A resistor, R1, is connected to an ideal battery (no internal resistance) and a
ID: 2277440 • Letter: A
Question
A resistor, R1, is connected to an ideal battery (no internal resistance) and a current I1 = 0.31 A flows through the circuit.
The first resistor, R1, is then removed from the circuit and a differnt resistor, R2, is placed in the circuit in place of R1. The new resistor has a resistance R2 = 1.8 R1. A new current I2 flows.
What is the new current, I2?
Give your answer in A to three significant figures.
A resistor, R1, is connected to an ideal battery (no internal resistance) and a current I1 = 0. 31 A flows through the circuit. The first resistor, R1, is then removed from the circuit and a different resistor, R2, is placed in the circuit in place of R1. The new resistor has a resistance R2 = 1. 8 R1. A new current I2 flows. What is the new current, I2? Give your answer in A to three significant figures.Explanation / Answer
using Ohm's Law , V=IR
=> if V is constant I is proportional to 1/R,
=> I2 = 0.31/1.8
=> I2 =0.172 A