When two spherical conducting balls at different potentials are joined by a metallic wire, after some time:
Both the conductors are at the same potential
Potential difference across the conductors remain constant
Potential difference across the conductors becomes zero
Both (A) and (B)
Both (A) and (C)
Drum
Deflection plates
Heated roles
None of these
Good insulator
Bad conductor
Excellent conductor
Semiconductor