4 cell each of emf 2 v and internal resistance of 1 Ωare connected in parallel to a load resisto

step 1 In this question we have 4 cell each of 2 volt and internal resistance 1 arm are connected in pa

4 cell each of emf 2 v and internal resistance of 1 Ωare...

4 cell each of emf $2 \mathrm{v}$ and internal resistance of $1 \Omega$ are connected in parallel to a load resistor of $2 \Omega$ Then the current through the load resistor is....
(A) $2 \mathrm{~A}$
(B) $1.5 \mathrm{~A}$
(C) $1 \mathrm{~A}$
(D) $0.888 \mathrm{~A}$

Key Concepts

Equivalent Circuit Analysis

Equivalent circuit analysis involves simplifying a complex network of sources and resistors into a single voltage source and single resistor. This technique allows for easier analysis of the circuit’s behavior, notably by combining individual EMFs and resistances when they are connected in series or parallel.

Ohm's Law

Ohm's Law is a fundamental principle stating that the current flowing through a resistor is directly proportional to the voltage across it and inversely proportional to its resistance. This relation is key to analyzing circuits, calculating current flow, and understanding voltage drops.

Parallel Circuit Connection

In a parallel circuit, multiple components share the same voltage across them although the currents branch and vary depending on each component's resistance. Understanding parallel connections is crucial for combining multiple power sources, where identical voltage is maintained but resistances combine differently compared to series circuits.

Internal Resistance

Internal resistance is the inherent resistance within a power source that causes a voltage drop when current flows. It affects the performance of the power source by reducing the effective voltage delivered to the external circuit and impacts the overall power efficiency.

Electromotive Force (EMF)

EMF represents the ideal voltage provided by a power source when no current is drawn. It is the force that drives charge through a circuit, essentially establishing the potential difference across the load.

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