electric current and ohm's law Assignment HW

The unit of measuring the electric charge is:

• Ohm

• Volt

• Ampere

• Coulomb

Which of these units is equivalent to one Ampere:

• Coulomb.sec

• Volt/Ohm

• Volt/Coulomb

• Ohm.Volt

The unit equivalent to Coulomb/second is:

• Volt

• Ampere

• Ohm

• Farad

The unit of measuring the E.M.F. of a cell is:

• Newton

• Joule

• Coulomb

• Volt

Which of these units is equivalent to one Volt

• Ampere/sec

• Joule/Coulomb

• Coulomb/sec

• Joule/sec

When a current of intensity 2A passes through a point in an electric circuit, the electric charge passing through one minute equals:

• 1 C

• 120 C

• 60 C

• 180 C

The voltage difference in volt required to let a current of 3A pass through a 6Ω resistor equals:

• 2 V

• 0.5 V

• 18 V

• 6 V

If the voltage difference across a 0.5Ω resistor is 6V, the current intensity is:

• 3 A

• 0.33 A

• 12 A

• 2 A

If the work done to transfer a charge of 3 Coulombs across a conductor is 60 Joule the potential difference across such a conductor will be:

• 180 V

• 20 V

• 180 J

• 20 J

The resistance of the conductor:

• Is inversely proportional to its length

• Is directly proportional to its cross-sectional area

• Does not depend on its material

• Is inversely proportional to its cross-sectional area