Start learning →

Assam CEE Current Electricity — practice questions

Explore 102 free Current Electricity questions in Assam CEE Physics. Open each question or exercise to read its content, reference answers and available explanation.

Practise Current Electricity with Quill →

Current Electricity questions and exercises with answers

Showing questions 1–30 of 102.

Ohm's law states that, for an ohmic conductor at constant temperature:Read the answer and worked solution →Three identical resistors, each of resistance $R$, are connected in **parallel**. The equivalent resistance is:Read the answer and worked solution →Kirchhoff's **voltage (loop) law** in any closed loop of an electrical network states:Read the answer and worked solution →The balance condition for a Wheatstone bridge with arms $P, Q, R, S$ (galvanometer between B and D) is:Read the answer and worked solution →In an electrical network, a **junction** is defined as:Read the answer and worked solution →In an electrical network, a **loop** (mesh) is:Read the answer and worked solution →Kirchhoff's first law (junction law) is a consequence of:Read the answer and worked solution →Kirchhoff's second law (voltage/loop law) is a consequence of:Read the answer and worked solution →The **potential gradient** $K$ along a uniform potentiometer wire is defined as:Read the answer and worked solution →While applying Kirchhoff's first law, currents **arriving** at the junction are considered:Read the answer and worked solution →An **ideal voltmeter** measuring a potential difference should have:Read the answer and worked solution →Three resistors of values 2 Ω, 3 Ω and 6 Ω are connected in parallel between two nodes. The equivalent resistance of the combination is:Read the answer and worked solution →While tracing a loop **in the direction of current** through a resistor, the potential difference across that resistor is taken:Read the answer and worked solution →An emf source is traversed from its negative to positive terminal while tracing a loop. The EMF contribution to KVL is:Read the answer and worked solution →Wheatstone bridge is typically used to measure resistances in the range:Read the answer and worked solution →For a balanced Wheatstone bridge with $P = 1.36\ k\Omega$, $R = 300\ \Omega$ and $S = 4.4\ k\Omega$, the unknown $Q$ is approximately:Read the answer and worked solution →The specific resistance ρ of a metre-bridge wire of length 1 m, diameter 0.12 cm and resistance 1.49 Ω is approximately:Read the answer and worked solution →The SI unit of electric current is:Read the answer and worked solution →The current I is related to charge q and time t by:Read the answer and worked solution →Electric current is a:Read the answer and worked solution →Ohm's law states V = ___ ?Read the answer and worked solution →The SI unit of resistance is:Read the answer and worked solution →For resistors in series, the equivalent resistance is:Read the answer and worked solution →For resistors in PARALLEL, the equivalent resistance is given by:Read the answer and worked solution →Kirchhoff's Current Law (KCL) is based on conservation of:Read the answer and worked solution →Kirchhoff's Voltage Law (KVL) is based on conservation of:Read the answer and worked solution →A galvanometer can be CONVERTED to an ammeter by:Read the answer and worked solution →Find the equivalent resistance of 2 Ω and 3 Ω connected in SERIES:Read the answer and worked solution →Find the equivalent resistance of 6 Ω and 3 Ω in PARALLEL:Read the answer and worked solution →A battery with emf 12 V and internal resistance 1 Ω drives 2 A current. Find terminal voltage V:Read the answer and worked solution →

Worked practice questions

Ohm's law states that, for an ohmic conductor at constant temperature:

  1. $V$ is independent of $I$
  2. $V \propto I^2$
  3. $V \propto \dfrac{1}{I}$
  4. $V \propto I$
Show answer and solution

Correct answer: D. $V \propto I$

Ohm's law: $V = IR$, where $R$ is constant for an ohmic conductor at fixed temperature. So $V$ is *directly proportional* to $I$ — the V–I graph is a straight line through the origin with slope $R$. For non-ohmic conductors (diodes, transistors), $R$ depends on $V$ or $I$, and the graph isn't a straight line.

Open this question →

Three identical resistors, each of resistance $R$, are connected in **parallel**. The equivalent resistance is:

  1. $\dfrac{R}{3}$
  2. $R$
  3. $3R$
  4. $R^3$
Show answer and solution

Correct answer: A. $\dfrac{R}{3}$

For $n$ identical resistors in parallel: $\dfrac{1}{R_{eq}} = \dfrac{n}{R} \Rightarrow R_{eq} = \dfrac{R}{n}$. With $n = 3$, $R_{eq} = \dfrac{R}{3}$. In parallel the equivalent is always *less than the smallest* component — and option C ($3R$) is the series result, the most common trap.

Open this question →

Kirchhoff's **voltage (loop) law** in any closed loop of an electrical network states:

  1. $\sum P = 0$
  2. $\sum IR + \sum \varepsilon = 0$
  3. $\sum I = 0$
  4. $V = IR$ only
Show answer and solution

Correct answer: B. $\sum IR + \sum \varepsilon = 0$

Around any closed loop, $\sum IR + \sum \varepsilon = 0$. This is **conservation of energy** — the net energy gained per unit charge in one full loop is zero.

Open this question →

How to practise

  1. Choose a Current Electricity question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Physics topics

MagnetismWork and EnergyWork and PowerMagnetism and MatterElectromagnetismOpticsKinetic Theory of GasesMagnetism & EMI