These are all True and False Questions They Will Be Divided Into 3 Different Sec

Question

These are all True and False Questions They Will Be Divided Into 3 Different Sections Section 1 Capacitors: A) The capacitance of the capacitor increases as the potential difference applied across it increases. B) If the separation between plates are tripled and the area of each plate is also tripled, the capacitance increases by a factor of 9. C) Capacitors in parallel configuration can be charged with a battery to store MORE charge then that stored in the same capacitors in series configuration by charging with the same battery. D) If the battery used to charge a capacitor is removed after charging the capacitor, the energy stored in the capacitor DECREASES since the potential difference across a charged capacitor DECREASES due to the absence of the battery.. E) If a dielectric substance is inserted between the plates of a charged capacitor, then the electric field between the plates INCREASES as the capacitor is fully charged. Section 2 Current and Resistance: A) The net average speed of electrons DECREASES as they pass through a resistor in a circuit. B) Adding more resistors to a circuit MUST INCREASE the resistance of the circuit. C) If a metal rod of length L and radius R is elongated by a factor of 2, its RESISTIVITY increases by a factor of 2. D) The electrical energy dissipated in a resistor INCREASES as the current through it INCREASES. E) Despite the INCREASE in the resistance in a light blub with temperature, the current through the light bulb OBEYS Ohm's Law. Section 3 Magnetism: A) If a compass is placed on the surface of the earth, its needle labeled as North points to the magnetic south pole of the earth. B) Every electrically charged particle in motion in an external magnetic field experiences a magnetic force regardless of the direction of the velocity of the charges particle. C) A magnetic force on a moving charged particle CAN CHANGE the direction of the velocity of the particle but does not work on it. D) Moving charges are the source of magnetic fields. E) The magnetic field generated by a current carrying loop conductor is SIMILAR TO that generated by a bar magnet.

Explanation / Answer

section 1

a)false

b)flase

c)true

d)false

e)true

setion 2

a)false

b)false

c)false

d)true

e)true

section 3

a)false

b)false

c)true

d)true

e)true

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