Applications of circuits

what is a fuse ?

• includes a device that gives energy to the charged particles constituting the current

• A circuit that includes series and parallel branches

• is a short piece of metal that acts as a safety device by melting and stopping the current passes through it

• simple device has been used for the purpose of illumination for more than a century. Electric bulb refers to a device which produces light on the application of electricity.

electrical safety devices that are designed to protect people from electric shock and electrocution

• a short circuit

• combination series-parallel circuit

• fuse

• ground-fault interrupter

CHALLENGE QUESTION :

The output voltage of a charger is?

• Less than the output voltage

• Equal to the battery voltage

• higher than the output voltage

• sometimes its higher that the output and sometimes its lower

A class prepared some electrical circuits using battery, connecting wires, and three light bulbs.  Which of these circuits can make the three bulbs light?

whats the answer ? A B C D

how to calculate the current through each appliance

• I= P/ delta V

• P= delta V x I

• V = I x P

• P= I / delta V

the fuse wire should have ?

• low melting point and high resistance

• high melting point and low resistance

What is a circuit with very low resistance called?

• short circuit

• fuse circuit

• uninterrupted circuit

• ground-fault interrupter

What electrical safety device is used in a bathroom or kitchen where water is present?

• fuse

• short circuit

• ground-fault interrupter

• circuit breaker

Which device is used to measure the current in any branch or part of a circuit?

• meter

• ammeter

• voltmeter

• circuit meter

Which instrument is used to measure the potential difference across a portion of a circuit?

• voltmeter

• circuit meter

• ammeter

• meter