Electric current is a ______quantity

(a)

base

(b)

supplementary

(c)

derived

(d)

professional

Amount of substance is

(a)

directly proportional to the number of atoms

(b)

inversely proportional to the number of atoms

(c)

directly proportional to the square of number of atoms

(d)

inversely proportional to the square of number of atoms

Which one of the following devices is used to measure electric current

(a)

(b)

(c)

(d)

Closeness of two or more measured values is called as ______

(a)

accuracy

(b)

precision

(c)

error

(d)

approximation

Which of the following statements  is wrong?

(a)

Approximation gives accurate value

(b)

Approximation simplifies the calculation

(c)

Approximation is very useful when little information is available

(d)

Approximation gives the nearest value only

Normal temperature of the human body is between

(a)

98.4°F and 99.6°F

(b)

98.4⁰F and 98.6⁰F

(c)

97.4°F and 98.6°F

(d)

97.6°F and 99.6⁰F

_______ can be used as memory or storage element in the computers.

(a)

Condutors

(b)

Insulators

(c)

Supercondutors

(d)

Semiconductors

__________ is the measure of the perceived power of light.

(a)

Luminous flux

(b)

Luminous power

(c)

Luminous Intensity

(d)

Both a and b

Electric current (I) = ____________

(a)

Qt

(b)

t/Q

(c)

Q/t

(d)

Q/t²

The unit of charge is ______

(a)

Coulomb

(b)

Ampere

(c)

Radian

(d)

Steradian