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Electric Motor:
A device, which converts electric energy into mechanical energy is known as Electric Motor.
Factors on which the speed of Rotation of Motor Depends:
The speed of rotation of motor depends on the following factors.
1. Magnitude of current passing by the motor.
2. Strength of magnetic field.
3. Number of turns in the coil of the motor.
4. Permeability of its armature.
The potential difference across the terminals of a cell when it is not supplying any current is known as it's emf.
What do you mean by spontaneous process? Give examples. What is path and state functions? Give examples.
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The given circuit diagram shows a series LCR circuit linked to a variable frequency 230 V source: (a) Verify the source frequency which drives the circuit in resonance. (b) G
Ammeters : Ammeters are used to measure current flow, as such they need to be inserted in series with the circuit under test so that the current to be measured flows through th
why soft iron is used in earphone
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Write the symbol sad truth table of an AND gate define how this gate is realised in practice by using two diodes.
Charging: During charging the device is linked across a source of D.C. supply having a voltage of about 3 volts. When the circuit is switched on the current flows inside the cell
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