alleryStart learning →Static electricity is an imbalance of what?
- Electric charges
- Magnetic poles
- Nuclear forces
- Thermal powers
Show answer and solution
Correct answer: A. Electric charges
Static electricity results from an imbalance of electric charges on an object.
ICSE Class 9 Electricity and Magnetism — practice questions
Explore 28 free Electricity and Magnetism questions in ICSE Class 9 Physics. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 1–28 of 28.
Static electricity is an imbalance of what?Read the answer and worked solution →Electrification caused by rubbing materials is called:Read the answer and worked solution →Redistribution of charge by a nearby charged body is:Read the answer and worked solution →A spark from static electricity is caused by what?Read the answer and worked solution →Initial charge separation in thunderclouds involves:Read the answer and worked solution →How does raising humidity prevent static charge buildup?Read the answer and worked solution →An atom is electrically neutral when it contains equal:Read the answer and worked solution →Electric polarization induced by mechanical stress is:Read the answer and worked solution →Which naturally magnetized mineral makes up lodestones?Read the answer and worked solution →Who concluded in 1600 that the Earth is itself a magnet?Read the answer and worked solution →The north-seeking pole of a magnet is attracted to a:Read the answer and worked solution →What is obtained when a bar magnet is cut into two halves?Read the answer and worked solution →What produces the magnetic field in an electromagnet?Read the answer and worked solution →Small aligned magnetic regions in ferromagnets are:Read the answer and worked solution →A ferromagnet loses spontaneous magnetism above the:Read the answer and worked solution →In 1820, Oersted discovered that an electric current:Read the answer and worked solution →What fundamentally flows across a surface to constitute a current?Read the answer and worked solution →In SI units, one ampere of electric current equals one:Read the answer and worked solution →By standard convention, current flows along the movement of:Read the answer and worked solution →In metallic conductors, current is carried by mobile:Read the answer and worked solution →Electric currents in chemical electrolytes consist of flows of:Read the answer and worked solution →To quantify circuit amperage, a technician connects an:Read the answer and worked solution →In which electrical system does current periodically reverse?Read the answer and worked solution →Dissipation of electrical energy as heat in a wire is:Read the answer and worked solution →Match each magnetic rule with its vector application:Read the answer and worked solution →Match each magnetic material category with its permeability behavior:Read the answer and worked solution →Match each electrical component with its operational property:Read the answer and worked solution →Match each electrostatic / circuit concept with its identity:Read the answer and worked solution →
Worked practice questions
Electrification caused by rubbing materials is called:
- Piezoelectric effect
- Photoelectric effect
- Triboelectric effect
- Thermoelectric effect
Show answer and solution
Correct answer: C. Triboelectric effect
Contact and sliding between surfaces generate charge via the triboelectric effect.
Redistribution of charge by a nearby charged body is:
- Magnetic saturation
- Electrostatic induction
- Dielectric breakdown
- Electrochemical plating
Show answer and solution
Correct answer: B. Electrostatic induction
Electrostatic induction causes charges to separate when near another charged body.
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