(A) The current through each is the same
(B) The total resistance is the sum of individual resistors
(C) The voltage across each is the same
(D) The total resistance is the product of the individual resistors
Tag: Physics Mcq Questions and Answers
The fractional change in resistivity per unit original resistivity per Kelvin is known as:
(A) Temperature co-efficient of resistance
(B) Temperature co-efficient of conductance
(C) Temperature co-efficient of conductivity
(D) Temperature co-efficient of resistivity
A wire of uniform area of cross-section ‘A’ length L and resistance R is cut into two equal parts. The resistivity of each part:
(A) Is doubled
(B) Remains same
(C) Is halved
(D) Is one-forth
The resistance of a meter cube of the substance is called:
(A) Conductivity
(B) Permittivity
(C) Resistivity
(D) Susceptibility
The resistance of a conductor of length L cross-section area A and resistivity 𝝆 is given by:
(A) R = 𝜌A / L
(B) R = 𝜌L / A
(C) R = 𝜌 / LA
(D) R = A / 𝜌A
The graphical representation of Ohm’s law is:
(A) Hyperbola
(B) Ellipse
(C) Parabola
(D) Straight
One coulomb per second is equal to:
(A) One Volt
(B) One Ampere
(C) One Watt
(D) One Ohm
If a charge ‘Q’ flows through any cross-section of the conductor in time ‘t’ second, the current ‘I’ is given by:
(A) I = Qt
(B) I = Q/t
(C) I = t/Q
(D) I = Q2/t