Electricity

Calculate the total resistance if voltage is 10V and current is 5 Amp.

• 2 ohm

• 50 ohm

• 0.5 ohm

• 15 ohm

Calculate I if voltage given is 24 V and R1 is 2 ohm and R2 is 4 ohm

• 6 Amp

• 12 Amp

• 4 Amp

• 4.6 Amp

With an increase of length, resistance will ____________ .

• remain

• decrease

• increase

• not affected

With an increase in temperature, resistance will ____________ .

• remain

• decrease

• increase

• not affected

With a decrease of cross-

section of a conductor, resistance will ____________ .

• remain

• increase

• decrease

• not affected

Calculate R2 if total resistance is 7 ohm. Given R1 is equal to R2.

• 7 ohm

• 3.5 ohm

• 3 ohm

• 0.5 ohm

Given voltage is 15V and current is 5A, calculate R2 if R1=R2.

• 0.1 ohm

• 20 ohm

• 0.2 ohm

• 1.5 ohm

Electrons move from ____________

• positive to negative

• negative to positive

• negative to negative

• positive to positive

Calculate current total if voltage total is 8 V, R1 and R2 are 4 ohm each.

• 2 A

• 4 A

• 5 A

• 1 A

Calculate voltage at R2 if total voltage is 12V, R1 and R2 are 3 ohm each and current is 1.5 A.

• 12 V

• 4 V

• 4.5 V

• 9 V