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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?
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
If beginning work in process equivalent units are 2500 units, work done in current period equivalent units are 3800 units and ending work in process equivalent units are 5000, then complete equivalent units in current period are
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.
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: The magnetic field disappears when the current is turned off. B: A current through the wire creates a magnetic field which is concentrated in the hole, denoting the center of the coil. C: An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.  D: Electromagnets usually consist of wire wound into a coil. 
In the bridge shown, Z1 = 300 ohm, Z2 = 400 – j300 ohm, Z3 = 200 + j100 ohm. The Z4 at balance is
A current carrying coil having magnetic moment M is placed in a magnetic field B. Initially the magnetic field is perpendicular to the plane of the coil and then coil turned about an axis such that the angle between the magnetic field and the plane of the coil become zero. Then choose the correct statement.
If beginning work in process equivalent units is 2500 units, work done in current period equivalent units is 3800 units and units completed in current period are 4000, then ending work in process equivalent units will be