Question

1- A 9 V battery is powering a simple circuit with one light bulb. There is a current of 0.58 running through the bulb and a voltage drop of 5.8 across the bulb. What is the internal resistance of the battery?

2- A series circuit uses three resistors. One resistor has a resistance of 19 Ω. The second resistor has a resistance of 26 Ω. The final resistor has a resistance of 21 Ω. What is the equivalent resistance of this circuit?

3- A parallel circuit consists of two resistors in parallel. The first resistor has a resistance of 17 Ω and the second resistor has a resistance of 57 Ω.  What is the equivalent resistance of this circuit?

4- Which of the following are true about using an ammeter in a circuit?

	A.	An ammeter must be connected in series to make a measurement.
	B.	An ammeter must be connected in parallel to make a measurement.
	C.	An ammeter measures voltage across a point in a circuit.
	D.	An ammeter measures the current running through a part of a circuit.

4- in a _____________ circuit, the components are connected in a single line. If more resistors are added to this circuit, then total current _________ and the equivalent resistance ___________ compared to the original circuit. in a __________ circuit, the components are connected in branches. If more resistors are added to this circuit, then the total current ____________ and the equivalent resistance ____________ compared to the original circuit.

options: series, decreases, remains unchanged, parallel, incomplete, increases

Answer 1