In an Rc circuit, if the resistance is doubled and the capacitance is reduced by

Question

In an Rc circuit, if the resistance is doubled and the capacitance is reduced by half the time constant

a) remains the same b) in creases c) decreases

When a light raay enters a more dense medium from a less dense medium, the refracted ray

a) is along the normal surface, b) is bent toward the normal, c) is bent away from normal, d) travels through the medium without bending

the magnetic field around a straight current carrying wire is in the form of (a) parallel lines, b) lines in the direction of the current, c) perpendicular lines, d) concentric circles

if a capacitor in an rc circuit discharges quickly

a) is time constant independent , b) has a large time constant, c) has a small time constnt

Explanation / Answer

1)remains the same

2) is bent away from the normal

3) concentric circles

4) is a tme constant independent

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