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Consider the following statements 1. Ohm’s law holds good when the temperature is changed. 2. Ohm’s law holds when the temperature of the conductor remains constant. 3. Ohm's law is an assumption that current through a conductor is directly proportional to the potential difference applied to it when temperature is constant. Which of the following statements is INCORRECT?
Nodal method of circuit analysis is based on a) KVL and Ohm’s law b) KVL, KCL and Ohm’s law c) KCL and KVL d) KCL and Ohm’s law Which of the following options is correct?
Consider the following statements.
1. Ohm's law is not applicable at very low and very high temperature.
2. Ohm's law is applicable to semiconductor.
3. Ohm's law is not applicable to electron tubes, discharge tubes and electrolytes.
4. Conductance is the reciprocal of resistance and ismeasured in siemens.
Which of the statements given above are correct?
Statement A: Ohm's law is not valid for some conditions of voltage and current. Statement B: There do exist materials and devices used in electric circuits where Ohm's law is not valid.
Based on the paragraph given below answer the following question: The traditional methods of combinational circuits involve simplification and realization using gates. Using these methods, complex functions have been integrated and are easily available in IC form. There is an attractive array of devices like a multiplexer, demultiplexer, decoders, comparators, parity generators/checkers, which significantly reduce IC package count there by reducing the system cost. The system design is greatly simplified because the laborious and time-consuming simplification methods are generally not required with these devices. This also improves the reliability of the system by reducing the number of external wired connections. But they have some limitations as well. Different memories like ROM, PROM can also be used to implement combinational circuits without much simplification.   Consider the following digital circuits. 1. Multiplexers 2. Read Only Memories 3. D-latch 4. Circuit as shown in figure below Which of these come under the class of combinational circuits?
A 2-port network is driven by a source Vs = 100 V in series with 5 ohm, and terminated in a 25 ohm resistor. The impedance parameters are The Thevenin equivalent circuit presented to the 25 ohm resistor is
In the bridge shown, Z1 = 300 ohm, Z2 = 400 – j300 ohm, Z3 = 200 + j100 ohm. The Z4 at balance is
For magnetic circuits, the relationship which is similar to application of Ohm’s Law is, (where ϕ is flux, S is reluctance)
Consider the following circuits: 1. Full adder 2. Half adder 3. JK flip-flop 4. Counter Which of the above circuits are classified as sequential logic circuits?
Referring this circuit, determine the maximum output voltage when a single pulse is applied as shown. The total resistance is 60 Ω.
Time Response of Reactive Circuits mcq question image