A transistor function mainly as a
A transistor function mainly as a A. switch and amplifier B. rectifier and an amplifier C. charge storer…
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The force on a current carrying conductor in a magnetic field is greatest when the
The force on a current carrying conductor in a magnetic field is greatest when the A. conductor makes…
At reasonance, the phase angle in an a.c. circuit is
At reasonance, the phase angle in an a.c. circuit is A. 90° B. 60° C. 0° D. 180°…
The process of energy production in the sun is
The process of energy production in the sun is A. nuclear fission B. nuclear fussion C. electron collision…
Which of the following metals will provide the greatest shield against ionizing radiation
Which of the following metals will provide the greatest shield against ionizing radiation A. Iron B. Manganese C.…
The current through a resistor in an a.c circuit is given as 2 sin wt….
The current through a resistor in an a.c circuit is given as 2 sin wt. Determine the d.c.…
The primary coil of a transformer has N turns and is connected to a 120…
The primary coil of a transformer has N turns and is connected to a 120 V a.c. power…
A cell can supply current of 0.4 A and 0.2 A through a 4.0Ω and…
A cell can supply current of 0.4 A and 0.2 A through a 4.0Ω and 10.0Ω resistors respectively.…
The particles emitted when ( ^{39}_{19}K text{ decay to } ^{39}_{19}K ) is
The particles emitted when ( ^{39}_{19}K text{ decay to } ^{39}_{19}K ) is A. gamma B. beta C.…
I. Low pressure. II. High pressure. III. High p.d. IV. Low p.d. Which combination of…
I. Low pressure. II. High pressure. III. High p.d. IV. Low p.d. Which combination of the above is…