Device that is designed to have a specific value of resistance is called……..
a) motor
b) resistor
c) electrifier
d) amplifier
Explanation:A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.
Which of the
following is/are used in making resistor?
a) carbon
b) wire of
special alloys
c) plastic
d) both a and b
Electrical Power:
Electric power is the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second. Electric power is usually produced by electric generators, but can also be supplied by sources such as electric batteries.
Which of the following appliances use/s electric power to run?
a) iron
b) washing machine
c) TV
d) all of these
The rate at which electric energy is used in a circuit is called electric……
a) speed
b) potential
c) power
d) work
When a charge moves in a circuit, it…energy.
a) gains
b) loses
c) neither gains nor loses
d) all of these
