Electronic Principles - T5C

Question 1

What is the ability to store energy in an electric field called?

Answer 1

Capacitance

Question 2

What is the basic unit of capacitance?

Answer 2

The farad

Question 3

What is the ability to store energy in a magnetic field called?

Answer 3

Inductance

Question 4

What is the basic unit of inductance?

Answer 4

The henry

Question 5

What is the unit of frequency?

Answer 5

Hertz

Question 6

What is the abbreviation that refers to radio frequency signals of all types?

Answer 6

RF

Question 7

What is a usual name for electromagnetic waves that travel through space?

Answer 7

Radio waves

Question 8

What is the formula used to calculate electrical power in a DC circuit?

Answer 8

Power (P) equals voltage (E) multiplied by current (I)

Question 9

How much power is being used in a circuit when the applied voltage is 13.8 volts DC and the current is 10 amperes?

Answer 9

138 watts

Question 10

How much power is being used in a circuit when the applied voltage is 12 volts DC and the current is 2.5 amperes?

Answer 10

30 watts

Question 11

How many amperes are flowing in a circuit when the applied voltage is 12 volts DC and the load is 120 watts?

Answer 11

10 amperes