Ohm's Law

Question 1

What is Ohm’s Law?

Answer 1

Relationship between voltage, current, resistance.

Question 2

What is the formula for Ohm’s Law?

Answer 2

Voltage (V) = Current (I) x Resistance (R)

Question 3

What is the relationship between Current and Voltage?

Answer 3

Directly proportional

Question 4

What is the relationship between current and resistance?

Answer 4

Inversely proportional

Question 5

What is the relationship between voltage and resistance?

Answer 5

Directly proportional

Question 6

What is Current?

Answer 6

Describes amount of charges passing through a point in a given second.

Question 7

What is the symbol and unit for Current?

Answer 7

Symbol = I
Unit = Ampere (Amps), A

Question 8

What device is used to measure current?

Answer 8

Anmeter

Question 9

How does current pass through series and parallel circuits?

Answer 9

• Same throughout series circuit

- Different throughout parallel circuit

Question 10

What is Voltage?

Answer 10

Is the pushing force on the current in a circuit.

Question 11

What is the symbol and unit for Voltage?

Answer 11

Symbol = V
Unit = Volts, V

Question 12

What device is used to measure Voltage?

Answer 12

Voltmeter

Question 13

What is Voltage caused by?

Answer 13

Electrical potential energy - electrical imbalance on each side of a circuit (one positive and one negative terminal).
> Thus, electrons forced to move through circuit.

Question 14

How does voltage apply in parallel and series circuits?

Answer 14

• Same throughout parallel circuit

- Different throughout series circuit

Question 15

What is Resistance?

Answer 15

Describes how much a circuit resists the movement of current in it.

Question 16

What is the symbol and unit for Resistance?

Answer 16

Symbol = R
Unit = Ohms, Ω

Question 17

How do you find total resistance in a series circuit?

Answer 17

R(tot) = R(1) + R(2) + R(3) + ….

Question 18

How do you find total resistance in a parallel circuit?

Answer 18

1/R(eq) = 1/R(1) + 1/R(2) + 1/R(3) + ….