Sources of voltage and units of electrical units

A device that converts mechanical energy to electrical energy

• Battery

• Electric generator

• Motor

• Photovoltaic cell

Which of the following are sources of voltage?

A. Chemicals

B. Heat

C. Light

D. Friction

E. Water

F. Magnetism

• All of the above

• A,B and C only

• A,B ,C ,D and F only

• D,E and F only

Negatively charged electrode is ...............................

• Anode

• Cathode

• Electrolyte

The chemical solution present inside the battery is called..........................

• Anode

• Cathode

• Electrolyte

A .................................... is capable of generating high voltage static electricity.

• Piezoelectric device

• Photovoltaic cell

• Van de Graaff generator

• Battery

Static electricity is caused due to .........................

• Pressure applied

• friction between two objects

• temperature difference

• Electomagnetic induction

................................is an example for piezoelectric device

• Silicon

• Germanium

• Quatrz

• Carbon

....................................is a device that generates voltage due temperature difference.

• Generator

• Battery

• Thermo couple

• Piezo electric device

..................................is unit of electric current

• Ampere

• Volt

• Seimens

• Ohm

..................................is unit of voltage

• Ampere

• Volt

• Seimens

• Ohm