Related Questions

The impedance of a series RC circuit varies directly with frequency.
A True
B False
In an ac circuit, power to the load peaks at the frequency at which the load impedance is the complex conjugate of the output impedance.
A True
B False
x varies inversely as square of y. Given that y=2 for x=1. The value of x for y=6 will be equal is-
A 3
B 9
C 1/5
D 1/9
The illumination of a bulb varies inversely as the square of the distance . If the illumination is 6 lux at a distance of 5 meters whet is illumination at a distance of 3 meters?
A 24
B 12
C 6
D 48
The resistance of a conductor varies inversely as
A Length
B Area of cross-section
C Temperature
D Resistivity
If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is
A 0
B 1
C 2
D 3
In continuous filtration (at a constant pressure drop), filtrate flow rate varies inversely as the
A Square root of the velocity
B Square of the viscosity
C Filtration time only
D Washing time only
If A varies directly proportional to C and B also varies directly proportional to C, which one of the following is not correct ?
A $$\left( {A + B} \right)\alpha \,C$$
B $$\left( {A - B} \right)\alpha \,\frac{1}{C}$$
C $$\sqrt {AB} \,\alpha \,C$$
D $$\frac{A}{B} = {\text{constant}}$$
XC is inversely proportional to frequency and capacitance.
A True
B False
If the frequency is halved and the resistance is doubled, the impedance of a series RL circuit
A Doubles
B Halves
C Remains constant
D Cannot be determined without values

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