A standard filament lamp consumes 100 W when connected to 200 V ac mains supply. The peak current through the bulb will be :

The terminal velocity of a copper ball of radius 5 mm falling through a tank of oil at room temperature is 10 cm s^$$-$$1. If the viscosity of oil at room temperature is 0.9 kg m^$$-$$1 s^$$-$$1, the viscous drag force is :

In a gravitational field, the gravitational potential is given by, $$V = - {K \over x}$$ (J/Kg). The gravitational field intensity at point (2, 0, 3) m is

The percentage error in the measurement of g is : (Given that $$g = {{4{\pi ^2}L} \over {{T^2}}}$$, $$L = (10\, \pm \,0.1)$$ cm, $$T = (100\, \pm \,1)$$ s)