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Dimensional Analysis

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Magnetism and Matter

Wheatstone Bridge

Interference

Magnetic Effects of Current and Magnetism

Moment of Inertia

Wave Optics

Standing Waves and Normal Modes

Projectile Motion

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Transformers

Carbon Resistors and Colour Code

Nuclei

Mechanical Properties of Solids

Electric Potential

p-n Junction Diode

Conservation of Momentum

Viscosity

Refraction through a Prism

Semiconductor Electronics

Potentiometer

Refraction at Spherical Surfaces and by Lenses

Doppler Effect

Electrostatic Potential and Capacitance

Motion in a Plane

Transistor as an Amplifier

Ray Optics and Optical Instruments

Kepler's Laws

Vernier Calipers

Equilibrium of a Rigid Body

Ideal Gas Equation

Electric Charges and Fields

System of Particles and Rotational Motion

Tools of Recombinant DNA Technology

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Biomolecules

Work-Energy Theorem

Conduction

Inductance

Kinetic Theory of Gases and Ideal Gas Equation

Magnetic Properties of Materials

Electrostatic Potential

Special Purpose p-n Junction Diodes

Electric Potential and Capacitance

Electric Power and Combinations of Resistors

Magnetic Properties of Materials and Electromagnetic Induction

Heat Engines

Kirchhoff's Laws

Gravitational Potential Energy

Electric Potential due to an Electric Dipole

Temperature Dependence of Resistance

Angular acceleration

Average Velocity

Magnetic Field due to a Current Element, Biot-Savart Law

Gauss's Law

X-ray Production

Semiconductor Electronics: Materials, Devices and Simple Circuits

Bernoulli's Principle and its Applications

Rectifiers and Filter Circuits

Magnetic Field due to a Solenoid

Significant Figures

Centre of Mass

Young's Double Slit Experiment (YDSE)

Capacitors

Electrical Resistance and Resistivity

Radius of Gyration

Current Density and Resistance

Transverse and Longitudinal Wave Motion

Junction Diode as a Rectifier

Biot-Savart Law and its Applications

Equipotential Surfaces

Ray Optics

Displacement-Time Graph

Heating Effect of Electric Current and Electric Power

Magnetic Effects of Current

States of Matter

Electrical Circuits

Measurement of Length

Resistance and Resistivity

Dimensions of Physical Quantities

Moving Charges and Magnetism

Chemical Bonding

Semiconductors

Magnetic Field due to a Current-Carrying Conductor

Mutual Inductance

Electric Current, Ohm's Law and Resistance

Torque

Resolving Power of Optical Instruments

Transistor: Structure and Action

Electric Field due to a Spherical Conductor

Ideal Gas Equation and Density

Mean Free Path

Resistivity of Materials

Electrical Resistance

Variation of Acceleration due to Gravity

Energy Units and Conversion

Electric Field

Fluid Dynamics

Velocity and Acceleration in SHM

Visible Spectrum and Wavelength

Earth's Magnetism and Magnetic Elements

Rainbow formation

Electrical Devices and Safety

Motion on an Inclined Plane

Coulomb's Law

Electric Power

Ohm's Law, Electrical Resistance, V-I characteristics, Electrical energy and power, Electrical resistivity and conductivity, Carbon resistors, Colour code for carbon resistors; Series and parallel combinations of resistors; Temperature dependence of resistance.

Ampere's Circuital Law and its Applications

Rotational Kinetic Energy and Moment of Inertia

Transistor: Structure and Action, Transistor as an Amplifier

Energy Stored in an Inductor

Motion of Charged Particles in Electric Field

Moving Coil Galvanometer

Force on a current-carrying conductor

Reflection by Spherical Mirrors

Measurements and Errors

Earth's Magnetism

Force between two parallel current-carrying conductors

Reflection of Light

Waves in Organ Pipes

Diffraction

Magnetic Field due to Current

Electromagnetic Spectrum

Scalar Product of Vectors

Torque on a current loop, magnetic dipole

Specific Heat Capacities and Speed of Sound in Gases

Ammeter and its resistance, Series and Parallel Combination of Resistors

Rotational Dynamics

Motion in Magnetic and Electric Fields

PYQs / Physics / Combinations of Resistors / 2025
Physics 2025

Combinations of Resistors

Pick a question to practice. Next and Previous stay in this set.

Start practicing
2025 2024
  1. 01
    A wire of resistance R is cut into 8 equal pieces. From these pieces two equivalent resistances are made by adding four of these together in parallel. Then these two sets are added in series. The net effective resistance of the combination is:
    easy
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