A dynamo is an electrical generator that creates direct current using a commutator. It works on the principle of electromagnetic induction, where relative motion between a conductor and a magnetic field induces an electric current. The mechanical energy input is used to rotate the conductor (armature) within the magnetic field.
Dynamo converts
Asked in UPPSC Upper Mains 2012 · Topic: Electric Current (Electrical Power and Energy, Joule heating effect)
More Physics questions
- A device which converts electrical energy into mechanical energy Is
- Fluorescent tubes are fitted with a choke. The choke coils
- Assertion (A): Transformer is useful for stepping up or stepping down voltages. Reason (R): Transformer is a device used in D.C. circuits. In the context of the above two statements, which one of the following is correct?
- Fuse wire used for safety of household have:
- How many units of electricity will be consumed if you use a 60 watt electric bulb for 5 Hour everday for 30 days:
- What happens if you plug in a heater device rated for 110 V, 50 Hz in a household AC electric supply plug in India ?
- Two resistors R and 2R are connected in series in an electric circuit. The thermal energy developed in R and 2R are in the ratio
- Current in a circuit is wattless when phase difference between current and voltage is