Use a value ofEo= 8.854 × 10-12 C2/Nm?,,40-4? × 10-7T.m/A, when needed for a num
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Use a value ofEo= 8.854 × 10-12 C2/Nm?,,40-4? × 10-7T.m/A, when needed for a numerical answer. Other physical quantities which may be useful are: Electron charge:-e =-1.6 × 10-19C, Gravitational acceleration g=9.81 m/s2 1. Kirchhoff's junction and loop laws are a consequence of conservation of energies and charges respectively. In particular, Kirchhoff's loop rule is a statement that the electrostatic force is conservative. (5 pts) a) True b) False 2. The planet earth is a magnet with a magnetic field much smaller than that for the moon. The earth's magnetic axis is not quite parallel to its geographic axis, so a compass needle deviates somewhat from geographic north. This deviation, which varies from location,is called magnetic declination. (5 pts) a) True b) False 3. Meissner effect is a statement that below a critical phase-transition temperature in a superconductor (a diamagnetic material), the magnet and superconductor repel each other; Curie's law states at very low temperature, the permanent magnet and aluminum can (a ferromagnetic material) can attract each other very strongly. (5 pts) a) True b) False 4. Lenz's law states: the direction of any magnetic induction effect is such as to (5 pts) oppose the cause of the effect. Page 1 of 11Explanation / Answer
1 , kirchoff's first law or junction law is statement of conservation of electic charge. all the charges that enter a given point in a circuit must leave that point because chage can't build up at a point hence given statement is false
kirchoff's loop law follows from the conservation of energy. Let's imagine moving charge around a closed loop of circuit. when the chare returns the same point, the charge circuit system must have the same total energy as it had before the charge was moved. The sum of the increases in energy as charge passes through some circuit elements must equal the sum of the decreases in energy as it passes through other elements.The potential energy decreases when the charge moves through resistor. and potential energy increases whenever the charge passes through a battery from the negative terminal to the positive terminal.
hence the given statement is False one.
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