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Explore 71 free Current Electricity questions in PUCET (Punjab) Physics. Each question opens with answer choices, the correct answer and a worked solution.
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Showing questions 1–30 of 71.
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 →
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