Electrical Fundamentals

Question 1

Define Electricity

Answer 1

Electricity is a fundamental form of energy involving the existence of charges.

Question 2

Define Current

Answer 2

The flow of charges along a closed conducting path.

Question 3

Define Resistance

Answer 3

the opposition that charges encounter when moving through material

Question 4

Define Voltage

Answer 4

Electromotive force or a difference in electrode potentials between two points

Question 5

Define Power

Answer 5

The rate of energy used by an electrical device.

Question 6

List symbols for current

Answer 6

I , A

Question 7

List symbols for Resistance

Answer 7

R

Question 8

List symbols for Voltage

Answer 8

E, V

Question 9

List symbols for Power

Answer 9

P, W

Question 10

What is the unit measurement of Current

Answer 10

Amps

Question 11

What is the unit measurement of Resistance

Answer 11

Ohms

Question 12

What is the unit measurement of Voltage

Answer 12

Volts

Question 13

What is the unit measurement of Power

Answer 13

Watts

Question 14

In words what does Ohms law describe

Answer 14

The relation between the ratio of voltage and current, to the resistance of a circuit.

Question 15

Define Circuit

Answer 15

A complete and closed path around which electrical current can flow.

Question 16

Define Series Circuit

Answer 16

A circuit where, the same current flows in one, consecutive, and continuous path from the source of voltage through various loads and back to the source

Question 17

Define Parallel Circuit

Answer 17

A circuit where voltage across each circuit elements is the same.

Question 18

Define Conventional Current

Answer 18

The flow of positive charges around a circuit. From positive to negative.

Question 19

Kirchhoff’s Voltage Law

Answer 19

The sum of the source voltages around any closed loop is equal to the sum of the voltages drops across the resistance in that loop.

Question 20

Kirchhoff’s current law

Answer 20

As much current flows away from a point as flows towards it.