Electric Circuits

What is the definition of resistance in electrical terms?

• The voltage required to produce a unit of current

• The pathway for current

• The energy boost given to a charge

• The potential added to a charge

What does Ohm's law state?

• Resistance decreases as heat increases

• Voltage equals current times resistance

• Current source boosts energy of a charge

• Resistance is directly proportional to length

Which material is considered the best conductor?

• Silver

• Nichrome

• Semiconductor

• Insulator

What is the characteristic of a superconductive material?

• Resistance remains constant over a wide range of voltages

• Resistivity drops to zero when cooled

• Always made of metal

• Negation of semiconductors

What is the role of a current source in a circuit?

• Provides a pathway between the battery and the load

• Uses the charge's energy to do work

• Boosts the energy of a charge before sending it out

• Treats electricity as a movement of positive charge

What is the definition of IR Drop as mentioned in the document?

• The voltage measure between the terminal of a battery

• The potential drop over a pure resistance R carrying current I

• The current flow blocked due to infinite resistance

• The reciprocal of the equivalent resistance

According to the document, what does a series circuit involve?

• A circuit with different paths of resistance

• A circuit that contains any combination of series and parallel resistors

• A circuit with one pathway through all resistors

• A circuit where the sum of the currents equals the current through the battery

What is the rule for the sum of IR drops in a series circuit as stated in the document?

• It equals the voltage of the battery

• It is less than the voltage of the battery

• It is more than the voltage of the battery

• It has no relation to the voltage of the battery

What does the term 'Network' refer to in the context of the document?

• A circuit with different paths of resistance

• A circuit that does not permit current flow

• A circuit that contains any combination of series and parallel resistors

• The resistance within a battery

What is meant by 'open circuit voltage' as per the document?

• Voltage that is listed on the battery

• Voltage measure between the terminal of a battery

• The potential drop over a resistance

• The sum of the reciprocal of the resistances