Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
Two scales on a voltmeter measure voltages up to 20.5 and 30.8 V, respectively. The resistance connected in series with the galvanometer is 1520Ω for the 20.5-V scale and 3060Ω for the 30.8-V scale. Determine (a) the coil resistance and (b) the full-scale current of the galvanometer that is used in the voltmeter.
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