3. Explain the following terms
a. ohms law
b. Conductors and insulations
c . resistance
d. specific resistance
e variable resistance
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ohm's law - ohm's law states that the current flowing in the circuit is directly proportional to its potential difference. V = IR
conductors - conductors are the substances which allow current to flow through them easily.
insulators - they are the substances which do not let current flow through them easily.
resistance - it is the obstruction offered to the current by a conductor.
specific resistance - Specific resistance is defined as the resistance offered per unit length and unit cross-sectional area when a known amount of voltage is applied.
variable resistance - variable resistance means that the resistance of a circuit can be varied easily by an instrument like rheostat,etc.
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