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Q. Explain Current and Magnetic Force?
The rate ofmovement of net positive charge per unit of time through a cross section of a conductor is known as current,
i(t) = dq / dt
The SI unit of current is the ampere (A), which represents 1 coulomb per second. In most metallic conductors, such as copper wires, current is exclusively the movement of free electrons in the wire. Since electrons are negative, and since the direction designated for the current is that of the net positive charge movement, the charges in the wire are thus moving in the direction opposite to the direction of the current designation. The net charge transferred at a particular time is the net area under the current-time curve from the beginning of time to the present,
While Coulomb's law has to do with the electric force associated with two charged bodies, Ampere's lawof force is concerned with magnetic forces associatedwith two loops ofwire carrying currents by virtue of the motion of charges in the loops. Note that isolated current elements do not exist without sources and sinks of charges at their ends; magnetic monopoles do not exist.
Q. Consider the magnetic circuit shown in Figure. Assume the relative permeability of the magnetic material to be 1000 and the cross-sectional area to be the same throughout. Deter
Collector-to-base bias: Figure: Collector-to-base bias This configuration uses negative feedback to avoid thermal runaway and stabilize the operating point. In th
why conductance is not zero at end pont? reply as soon as possible.
Convert number systems from one base to another, and apply the binary number system to logic circuits 1. Convert the following decimal numbers to binary a. 81 10 b.
What is ammeter An ammeter is an instrument used to calculate current and must be connected in series with the circuit.
Q. Describe an integrator circuit ? A circuit in which output voltage is directly proportional to the integral of the input is known as an integrating circuit. An integrating c
Transmission parameters are more effective than the hybrid parameters for simulation of the transmission line
explain about signal
What is the difference between primary and secondary winding of transforme
Compare with memory The contents of the memory of the memory location pointed by HL register pair are compared with the contents of the accumulator. The instruction f
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