An oscillator circuit consisting of an amplifier circuit, tuned circuit in the collectorand an inductive coupling for feedback. The emitter junction is forward biased while the collector junction is reverse biased. The coil L1 and L2 are would on the same core so thatthey are inductively coupled through their mutual inductance.
Working of a transistor as an oscillator- The transistor transfers the resistance, it is called
as transistor. There exists an input circuit with a small source of power and a small resistance and an output circuit with a high resistance and moderately large source of power. In the input circuit, whenever there is a small change in current, there is an amplified variation of current in output circuit, mainly because the resistance are transferred. The amplified output current also oscillates with respect to the input, when the input current is made to oscillate by applying a signal to the input terminal.
Explain with the help of a labelled diagram the working of a transistor as an oscillator.
Explain with the help of a labelled diagram the working of a transistor as an oscillator.
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west of the geographic north. The north tip of the magnetic needle of a dip circle placed in the plane of magnetic meridian points above the horizontal. The horizontal component of the earth’s field is measured to be 
Specify the direction and magnitude of the earth’s field at the location.At a certain location in Africa, a compass points 
and 
carrying currents of 
and 
in the same direction are separated by a distance of 
. Estimate the force on a 
section of wire A.
wire carrying a current of 
is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be 
. What is the magnetic force on the wire?
and making an angle of 
with the direction of a uniform magnetic field of 
. What is the magnitude of the field 
at a point 
from the wire?
-turns carrying current 
.
is at distance 
from the wire. Find the force acting on the electron if its velocity is directed towards the wire.