Physics · JEE

Important Questions: Series and parallel combinations of resistors, temperature dependence of resistance for JEE

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The most important Series and parallel combinations of resistors, temperature dependence of resistance questions for JEE cover conceptual traps, standard results, and numerical patterns from Series and parallel combinations of resistors, temperature dependence of resistance. Goodmarks provides 18+ high-yield MCQs with full solutions.

Focus on what matters most. These important Series and parallel combinations of resistors, temperature dependence of resistance questions cover high-weightage concepts from Series and parallel combinations of resistors, temperature dependence of resistance — the topics JEE repeats every year.

Syllabus context

Part of Current Electricity in JEE Main Physics.

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Q1PhysicsUnit 12: Current Electricity

The equivalent Resistance: This question has multiple correct options

Q2PhysicsUnit 12: Current Electricity

Two heater coils separately take 10 min and 5 min to boil a certain amount of water. If both the coils are connected in series, the time taken will be

Q3PhysicsUnit 12: Current Electricity

When two same conducting rod are kept at different temperature,

Q4PhysicsUnit 12: Current Electricity

If two resistors of resistance

30 \Omega

and

40 \Omega

are connected in parallel across a battery. The ratio of the potential difference across them is

Q5PhysicsUnit 12: Current Electricity

Nidhi has two bulbs connected across two cells in a simple circuit as shown. How can she make the bulbs glow dimmer?

Q6PhysicsUnit 12: Current Electricity

The resistance of an iron wire is

10 \Omega

and its temperature coefficient of resistance is

5 \times 10^{-3} /^{o} C .

A current of

30 \mathrm{mA}

is flowing in it at

20^{\circ} \mathrm{C}

. Keeping potential difference across its ends constant, if its temperature is increased to

120^{\circ} \mathrm{C}

then the current flowing in the wire will be (in

\mathrm{mA}

)

Q7PhysicsUnit 12: Current Electricity

In a parallel circuit of bulbs,

Q8PhysicsUnit 12: Current Electricity

For a metallic wire, the ratio

\frac{V}{i}

(where,

\mathbf{V}=

applied potential difference and

\mathbf{i}=

current flowing

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What makes a Series and parallel combinations of resistors, temperature dependence of resistance question "important" for JEE?

Important questions test core concepts that appear frequently across JEE Main and Advanced papers — definitions, standard formulas, and classic problem types.

Which subtopics in Current Electricity are high-weightage?

Key areas include Series and parallel combinations of resistors, temperature dependence of resistance. Prioritise these before moving to edge cases.

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Revise 30–50 important MCQs per unit in the last month before JEE. Focus on questions you got wrong at least once.

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