13. The movement of charged particles in a specific direction the charged particle maybe an electron.
a. Water current
C. resistance
b. Voltage
d. electric current
14. The unit used to specify the amount of resistance
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Answer:
Force due to both electric and magnetic forces will influence the motion of charged particles. ... field, where the particle velocity has no bearing, on any given instant, on the magnitude or direction of the electric force.
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13. Movement of charged particles in a specific direction is called d. electric current.
14. Unit of resistance is ohm (Ω).
Explanation:
- An electric current is a flow of electric charge in a circuit. Here, the electric charge is electron in the conductor.
- The electric current is the rate of charge flow past a given point in an electric circuit.
- If a force or a potential difference is applied on the electrons to move them in a particular direction, then they will all drift in same direction, although still in random manner, but there is an overall movement in one direction. This is termed as flow of current.
- Resistance is the tendency of a material to resist the flow of electrical current. SI unit of resistance is ohm (Ω).
According to Ohm's Law: Potential difference is directly proportional to the current flowing in the conductor.
- ∝
- , where is the applied external potential difference, is the current flowing and is the resistance of the conductor.
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