Electrical Units Quiz

Which of the following is the only electrical unit derived from the outcome of an experiment?

• Coulomb

• Watt

• Ampere

• Ohm

What is the order of defining standard electrical units starting from the base unit?

• Coulomb, ampere, watt, volt, ohm

• Ampere, coulomb, watt, volt, ohm

• Watt, volt, ampere, ohm, coulomb

• Volt, watt, ohm, ampere, coulomb

What does "SI" stand for in the context of electrical units?

• Standard International

• System International

• System of Integration

• Standard Integration

According to the official SI definition, what is the ampere?

• The constant current that produces a force of one newton per meter in a wire

• The constant voltage across two conductors placed 1 meter apart

• The constant current which, if maintained in two straight parallel conductors of infinite length, would produce a force between them

• The unit of charge transferred by one coulomb per second

What is the definition of 1 ampere based on the original experiment described in the text?

• The amount of charge flowing when the current is 1 coulomb.

• The force between two 1-meter-long wires in parallel when the current is the same in both wires.

• The force of 1 newton between two parallel wires when the current is adjusted.

• The amount of energy used when 1 coulomb of charge flows.

What is the SI unit of charge?

• Ampere

• Joule

• Newton

• Coulomb

How is one coulomb defined in relation to the ampere?

• The amount of energy used when the current is 1 ampere.

• The amount of charge flowing when the current is 1 ampere.

• The force applied when the current is 1 ampere.

• The resistance encountered when the current is 1 ampere.

Who proved the existence of the electron in 1897?

• Robert Millikan

• J.J. Thomson

• Isaac Newton

• Albert Einstein

What is the unit of power?

• Coulomb

• Volt

• Watt

• Joule

What does one watt equal in terms of energy transfer?

• The power which in one minute gives rise to energy of 1 joule

• The power which in one second gives rise to energy of 1 joule

• The power which in one hour gives rise to energy of 1 joule

• The power which in ten seconds gives rise to energy of 10 joules