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the terminal pd of a dc source is 225 v when supplying a load current of 10 a if the emf is 24 v calculatea the
in a test the velocity of a body was measured over a period of time yielding the results shown in the table below plot
1 for the circuit arrangement specifi ed in q12 above determine the power and energy dissipated by the external load
1 the insulation resistance between a conductor and earth is 30 m omega calculate the leakage current if the supply
a 110 v dc generator supplies a lighting load of forty 100 w bulbs a heating load of 10 kw and other loads which
the field winding of a dc motor is connected to a 110 v supply at a temperature of 18degc the current drawn is 0575 a
a coil consists of 1500 turns of aluminium wire having a cross-sectional area of 075 mm 2 the mean length per turn is
1 two 560 omega resistors are placed in series across a 400 v supply calculate the current drawn2 when four identical
1 calculate the total current when six 120 omega torch bulbs are connected in parallel across a 9 v supply2 two 20
three resistors of 5 omega 6 omega and 7 omega respectively are connected in parallel this combination is connected in
three loads of 24 a 8 a and 12 a are supplied from a 200 v source if a motor of resistance 24 is also connected across
a small business operates three pieces of equipment for nine hours continuously per day for six days a week if the
the current flowing through a 470 omegaresistance is 4 a determine the energy dissipated in a time of 2 h express your
1 calculate the electrical field strength between a pair of plates spaced 10 mm apart when a pd of 05 kv exists between
three resistances were measured using a commercial wheatstone bridge yielding the following results for the settings on
1 two parallel plates 25 cm by 35 cm receive a charge of 02 c from a 250 v supply calculatea the electric flux andb the
for the circuit of fig 241 determinea the current supplied by each batteryb the current through the 15 omega resistor
two batteries a and b are connected in parallel positive to positive with each other and this combination is connected
a circuit consists of a 15 omega and a 30 omega resistor connected in parallel across a battery of internal resistance
an electric cooker element consists of two parts each having a resistance of 18 omega which can be connecteda in
a 12 omega and a 6 omega resistor are connected in parallel across the terminals of a battery of emf 6 v and internal
1 a paper dielectric capacitor has two plates each of effective csa 02 m2 if the capacitance is 50 nf calculate the
1 a parallel plate capacitor has 20 plates each 50 mm by 35 mm separated by a dielectric 04 mm thick if the capacitance
a 50 pf capacitor is made up of two plates separated by a dielectric 2 mm thick and of relative permittivity 14
for the circuit shown in fig 334 the total capacitance is 16 pf calculatea the value of the unmarked capacitorb the