86) The current in a conductor is directly proportional to the potential difference between its end. This is called ……
A) Faraday’s law
B) Kirchoff’s laaw
C) Ohm’s law
D) Newton’s law
87) When a copper wire is connected to a battery the electric field in the wire is
A) more at positive terminal
B) more at negative terminal
C) not uniform in the wire
D) uniform in the wire
88) Units for specific resistance ….
A) Ωm
B) Ω/m
C) m/Ω
D) Ωkg
89) 
= which quantity
A) Potential
B) Current
C) Resistance
D) Capacity
Explanation:( 
) = which quantity?
Potential
(Electric potential (V) is defined as work done per unit charge, and since work = force × distance, ( V = 
).)
90) A current through a conductor is 2A. When there is a potential difference of 10V between its ends. Its resistance is
A) 5Ω
B) 0.2Ω
C) 20Ω
D) 2.5Ω
Explanation:A current through a conductor is 2A. When there is a potential difference of 10V between its ends, its resistance is
5Ω
(Using Ohm’s law, ( R = 
).)