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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.
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.
Bronze is an alloy of (A) Copper. (B) Aluminium. (C) Silver. (D) Carbon. Ans: Bronze is an alloy of copper.
Design a low noise amplifier using an Infineon RF transistor BFP640. The amplifier is to be used to amplify the L2 GPS signal and so the centre frequency is 1227MHz and bandwidth 4
State the significance of LOCK signal in 8086? If 8086 is working at maximum mode, there are multiprocessors are there. If the system bus is given to a processor then the LOCK
DPR PREPARATION: 1. Asset Management 2. System Operations and Despatch 3. Field Operations 4. Customer Processes 5. Corporate Processes The details covered
atomic absorption theory
Hi, What is the time response for a closed loop transfer function:H(s) = 10/(s^2 +s +1) to delta function input?
a) With the help of a neat and clean sketch illustrate the difference between relative and absolute motion measuring device. b) Discuss electromechanical methods for calculating
The resistance of a 2 m length of cable is 2.5?. Verify (a) the resistance of a 7 m length of the similar cable and (b) the length of the same wire when the resistance is 6.2
Q. What is the significance of giving a negative voltage to the gate higher than that of the source? This is done to reach the saturation at a lower of level of V DS . The re
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