grade 12 physics program

If R is the resistance of the microphone and r is the resistance of the ammeter, the..

01. - Calculate the absolute potential at the point P in the figur..

(a) The terminal voltage V (the voltage drop across the terminals of the battery) is related to the EMF of the battery (open circuit voltage drop) by the relation, V = E - Ir Now, E = 12 V, I = 90 A or V = 12 - 4.5 = 7.5 V (b) The maximum current from a battery can be drawn..

Consider a straight conductor XY carrying a current I as shown. To find the magnetic field at P, consider a small current element of length dl. If be the position of point P from current element q the angle between Let CO = I According to Biot and Savart's law, field at P due to current f..

Magnetic Field due to a Straight Conductor Carrying Current - Consider a straight conductor XY carrying a current I as shown. To find the magnetic field at P, consider a small current element of length dl. If be the position of point P from current element q the angle between Let CO = I According t..

02. An electric dipole consists of +5C and -5C separated by a distance 3cm. Find the flux passing through a sphere of radius 6cm enclosing the dipol..

Total potential at the centre O of the circle is given by o..

Consider a point P located on the axial line of a short bar magnet of magnetic length '2l' and pole strength m. Let us find at a point p which is at a distance d from the centre of the magnet. Magnetic flux density at p due to N-pole ..

Double the current for double the time will deposit 0.5 x 2 x 2 mole i.e., 2 mole of silver. ..

The valency of silver is one. So, silver is monoatomic. Thus, the chemical equivalent of silver is the same as the molar mass of silver. Since charge required to liberate one chemical equivalent of silver is 96500 C, therefore, the charge q required to liberate 0.5 chemical equivalent of silver is..