A simple electric motor uses: Current Semiconductors The right hand rule Permane

Question

A simple electric motor uses: Current Semiconductors The right hand rule Permanent Magnets Superconductors What needs to be changing in order to induce and electric field (current)? Electric field Magnetic field Induction field Transformer coils If a magnet is pushed into a coil, voltage is induced across the coil. If the same magnet is pushed into a coil with twice the number of loops One half of the voltage is induced Double the voltage is induced The same voltage is induced Which of the following is used to measure current using the deflection of an arrow using electromagnetic induction? Solenoid Switch Galvanometer Generator Electromagnet

Explanation / Answer

Answere 1)

A simple electric motor uses

Current

Right hand rule

Permanent magnets

Answere 2)

Magnetic field

Answere 3)

Double the volatge is induced

Answere 4)

Galvanometer

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