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Ohms Law - Practice Questions & MCQ
Updated on Sep 18, 2023 18:34 AM | #JEE Main
Quick Facts
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Ohms Law is considered one of the most asked concept.
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37 Questions around this concept.
Solve by difficulty
The resistance of a given wire is obtained by measuring the current flowing in it and the voltage difference applied across it. If the percentage errors in the measurement of the current and the voltage difference are 3% each, then the error in the value of resistance of the wire is : (in %)
The current I and voltage V graphs for a given metallic wire at two different temperatures $T_1$ and $T_2$ are shown in the figure. It is concluded that:
A potential divider circuit is shown in figure. The output voltage V0 is :
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A 3-volt battery with negligible internal resistance is connected in a circuit as shown in the figure. The current I (in Amperes) in the circuit will be
The current through the circuit is
Consider a circuit as shown in Fig. We want to measure the current flowing in the circuit.
For this, we connect an ammeter of resistance RA in the circuit. The percentage error in the current is
Fuse wire is a wire of
For ohmic conductor, the graph between V and I is
For ohmic conductor, which of the following graph is false?
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Use NowWhich of the following is non-ohmic conductor?
Concepts Covered - 1
Ohms Law
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Ohm’s law
In a conductor, if all external physical conditions like temperature and pressure are kept constant the Current flowing through a conductor is directly proportional to the Potential difference across two ends.
$$
\begin{gathered}
V \propto I \\
V=I R
\end{gathered}
$$
$R$ - Electric Resistance
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The graph between V and I
The slope gives the resistance
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The graph between V and I at different temperatures
Here$\mathrm{T} 1>\mathrm{T} 2$.The resistance of a conductor increases with increase in temperature
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