Ohm's Law

1. An electrical circuit is a closed loop containing a(n) _____.

-conducting material -energy supply -load

4. Ohm's law can calculate the _____ of a circuit.

-current -potential difference -resistance

6. A digital multimeter measures _____.

-current -voltage -resistance

2. A _____ is a source of load in a circuit.

-light bulb -resistor -rheostat

5. Ohm's law can be demonstrated by _____ of a simple circuit.

-measuring current -measuring the potential difference -varying the energy source

10. A circuit has a potential difference of 2.50 V and a current of 0.050 A. The resistance of the circuit is _____ Ω.

50.0

Provides a pathway for charges to travel in a circuit

Conducting material

A measure of the rate of flow of charges past a point in a circuit

Current

A device used to measure two or more electrical values

Digital multimeter

T/F

F-Current in a circuit is directly proportional to resistance

T/F

F-an ammeter is used to measure potential difference

5. When measuring current, a device with high internal resistance is connected in series within a circuit.

False

9. Adding batteries to a simple circuit increases the resistance of the circuit.

False

A measure of the hindrance of flow for charges in a circuit

Resistance

T/F

T- Ohm's law describes the relationship between current, potential difference, and resistance

T/F

T-A digital multimeter can function as an ammeter and voltmeter

3. Ohm's law states that current and potential difference are directly proportional in a circuit.

True

4. Ohm's law is expressed using the equation _____.

V=I x R

8. _____ is measured by touching the leads of a multimeter to each side of a battery in a simple circuit.

Voltage

A measure of the potential difference across a circuit component

Voltage

2. The measurement of current in a circuit is expressed in _____.

amperes

7. Jumper cables function as a(n) _____ in a simple circuit.

conducting pathway

1. Charges travel from low potential energy to high potential energy in the _____ of a closed circuit.

energy supply

3. Potential difference within a circuit is expressed in _____.

volts