Electricity - Module 2

Question 1

If voltage is reduced, the current will________

Answer 1

decrease

Question 2

If the resistance is reduced, the current will ________

Answer 2

increase

Question 3

If the voltage is increased, the resistance__________

Answer 3

Does not change

Question 4

If the resistance is increased, the voltage __________

Answer 4

Does not change

Question 5

If the resistance is increased, the current will_______

Answer 5

decrease

Question 6

If the voltage is increased, the current will_________

Answer 6

Increase

Question 7

What is the formula for solving current?

Answer 7

I = V/R

Question 8

What is the formula for solving voltage?

Answer 8

V = I x R

Question 9

What is the formula for solving resistance?

Answer 9

R = V/I

Question 10

What is the resistance if a circuit has a voltage of 25 V and a current of 2.7mA?

Answer 10

925.9 Ohms

Question 11

What is the voltage of a circuit if the resistance is 2.5k Ohms and a current of 0.5 A?

Answer 11

1.25kV

Question 12

what does 156.5 Ohms round to?

Answer 12

157 Ohms

Question 13

What does 35924 Ohms round to? What is the unit that represents this?

Answer 13

35.9 k Ohms

Question 14

What does 15microA equal in Amps?

Answer 14

0.000015 A (Move the decimal place over to the left 6 places)

Question 15

What does 6744.3 Ohms round to? What is the measurement

Answer 15

6.74 k Ohms

Question 16

If current is doubled, power is________

Answer 16

Quadrupled

Question 17

The basic equation for power is

Answer 17

P = V x I

Question 18

The basic equation for voltage is

Answer 18

V = I x R

Question 19

If voltage and current are known, what is the equation to calculate power?

Answer 19

P = V x I

Question 20

If power and resistance are known, what is the equation to calculate voltage?

Answer 20

V = P/I

Question 21

If Voltage and power are known, what is the equation to calculate current?

Answer 21

I = P/V