brendaandrade1889
09.01.2020 •
Physics
Which statement describes a resistor in a circuit?
o
a. it forces positive charge to move against its natural tendency.
o
b. it heats up by opposing the flow of charge through the circuit.
o
c. it acts as a switch to control the flow of charge in a circuit.
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d. it stores charge on conductive plates in a circuit.
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Ответ:
A resistor in a circuit acts as a switch to control the flow of charge in a circuit.
Explanation:
An electrical components that plays a role of limiting or regulating the electrical current flow is termed as Resistor. It can be helpful for the purpose of giving certain voltage to a device like a transistor. The current that is passing through a resistor has a inverse proportionality with its resistance and direct proportionality to the voltage that is passing across it., provided another factors remaining unchanged. This can be explained by Ohm's Law.
The electric current that is passing through an electrical circuit will always be dependent on the the voltage and the resistance. When the current flowing throgh a circuit is larger then it can result in heating that damages and burn he resistors or the objects that is present around the circuit.
Ответ:
the comment above me is wrong.
changes= the shape of a liquid. the volume of a gas. the shape of a gas
Doesnt change= the volume of a solid. the shape of a solid. the volume of a liquid
Explanation: