General Physics Round 2

What is the SI unit for the electric field?

• Newtons

• Coulombs

• Newtons per Coulomb

• Newtons per meter

What charges repel?

• like

• opposite

• negative

• positive.

Field lines ends on a___________________.

• negative charge

• positive charge

• proton

• neutron.

What are the three factors affecting the capacitance of a parallel plate capacitor?

• Dielectric,farad&voltage

• Area of plates,dielectric & distance between the plates

• Voltage,capacitance&dielectric

• None of the above

The property of material due to which it attracts or repels other objects is________________.

• friction

• velocity

• current

• charge.

If mica and woolen cloth are rubbed together,then mica gets_______________.

• positively charged

• negatively charged

• remains neutral

• dual charged.

What charges attract?

• like

• opposite

• negative

• positive

Isn't it true that capacitor stores electric charges?

• Yes

• No

• Maybe

• I don't know

A positive charge Q=8 mC is placed inside a spherical conducting shell with inner radius a and outer radius b which has an extra charge of 4 mC placed somewhere on it.When all motion of charges ends(after 10-15 sec),find the charges on the inner and outer surfaces of the shell.

• Inner charge=-8 mC,Outer charge=+8 mC

• Inner charge=+8 mC,Outer charge=-8 mC

• Inner charge=+8 mC,Outer charge=-12 mC

• Inner charge=-8 mC,Outer charge=12 mC

The SI unit of capacitance is farad symbolized by letter F and was named after who?

• Michaele Farad

• Michael Farad

• Michael Faraday

• Michael Faraed