For this question, assume the multimeter is set to 200m when testing current and

Question

For this question, assume the multimeter is set to 200m when testing current and 20v when testing voltage.

What is the current in a circuit with one AA battery and one !00 ohm resistor? What is the voltage across the resistor?

What will the current in the circuit be with two AA batteries and one 100 ohm resistor? What is the voltage across the resistor?

What will the current in the circuit be with three AA batteries and one 100 ohm resistor? What is the voltage across the resistor?

battery battery battery 100 ohm resistor 100 ohm resistor multimeter multimeter battery battery battery battery battery battery battery 100 ohm resistor 100 ohm resistor multimeter multimeter No. V (Volts)-voltage | 1 (A)-electric current R = V/I (Ohm)- resistance one batte two batteries three batteries Four batteries verade

Explanation / Answer

Voltage of one AA battery = 1.5 V

a. Voltage across the resistor = 1.5 v ( as entire voltage drop will happen in the resistor)

Current across the resistor = 1.5/100= 0.015 A

b. Voltage across the resistor = 1.5 x 2 = 3 v ( as entire voltage drop will happen in the resistor)

Current across the resistor = 3/100= 0.03 A

c. Voltage across the resistor = 1.5 x 3=4.5 v ( as entire voltage drop will happen in the resistor)

Current across the resistor = 4.5/100= 0.045 A

d. Voltage across the resistor = 1.5 x 4=6 v ( as entire voltage drop will happen in the resistor)

Current across the resistor = 6/100= 0.06 A

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