Questions asked
Kamlesh Goyal
Numerade educator
Calculate the minimum numbers of 8uF and 250 V capacitors are used to make a combination of 16uF and 1000 V.
The difference in the effective capacity of two similar capacitors when joined in series and then in parallel is 6uF. The capacity of each capacitor will be?
Calculate the electric potential at the surface of an atomic nucleus (Z = 50) of radius 9*10^-3 cm.
A bullet of mass 2g is having a charge of 2uC. Through what potential difference must it be accelerated, starting from rest, to acquire a speed of 10m/s?
In the absence of an electric field, calculate the mean velocity of free electrons in a conductor at absolute temperature.
When a 1 ohm resistor is connected across the potential difference of 20 V, what will be power dissipation in it?
A potential difference 24V is applied across a parallel combination of four 6 ohm resistor. What is the value of current in each resistor?
Two long and parallel straight wires carrying currents of 2 A and 5 A in the opposite directions are separated by a distance of 1 cm. The nature and magnitude of the magnetic force between them will be?
An electric dipole, consisting of two opposite charges of magnitude 2×10?6 C each separated by a distance 3 cm is placed in an electric field of magnitude 2×105 N/C along the direction making 900 with the field. Torque acting on the dipole will be?
A circular coil of 200 turns and radius 10cm is placed in a uniform magnetic field of 0.5T , normal to the plane of the coil. If the current in in the coil is 3.0A , calculate the total force on the coil?