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a. $120C$

b. $240C$

c. $20C$

d. $4C$

Answer

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$I = \dfrac{V}{R}$

Where $I$ stands for the current flowing through the wire,

$V$stands for the potential difference, and

$R$ stands for the resistance of the conducting wire.

$q = It$

Where $q$ stands for the amount of charge flowing through the conductor, and

$t$ stands for the time.

The resistance of the wire is given by $R = 10\Omega $

The potential difference across the ends of the wire is given, $V = 20V$

By applying Ohm’s law, we can find the current as,

$I = \dfrac{V}{R} = \dfrac{{20}}{{10}} = 2A$

The total charge will be,

$q = It$

The time is given as

$t = 2\min = 2 \times 60 = 120s$

The total current is, $I = 2A$

Therefore, the total charge can be written as,

$q = It = 2 \times 120 = 240C$

According to Ohm’s law, the amount of current flowing through a conductor will be directly proportional to the potential difference across the ends of the conductor. Only when a steady current flows through a conductor, Ohm’s law holds good. Conductors that obey Ohm's law are called ohmic conductors and conductors that do not obey Ohm’s law are called non-ohmic conductors.

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