Question

True or False

1. The drift velocity is always in the same direction as the electric field.
2. For a conductor to have a steady current, it must be part of a path that forms a closed loop or complete circuit.
3. The units of electromotive force are Newtons.
4. The variation in thermal conductivities across materials is generally much higher than the variation in electrical conductivities across materials.
5. A semiconductor diode is an electronic device that obeys Ohm’s law.
6. The current is the same at every point in a simple loop circuit, even if the wire thickness is not constant throughout the circuit.
7. The potential where the current exits a resistor is always higher than the potential where the current enters a resistor.

Chose right answers in brackets

8. You find a resistor whose first two stripes are yellow and violet. Which digits do these colours correspond to? (1-2-3-4-5-6-7-8-9- 0)
9. The charged particles moving in a copper wire flow in what direction relative to the conventional current? ( same direction – opposite direction)
10. An ideal voltmeter has ( zero- infinite ) internal resistance while an ideal ammeter has (zero – infinite ) internal resistance.

Answer 1

Ideal voltmeter has ZERO internal resistance

Ideal ammeter has INFINITE internal resistance

Charged particles moving in a copper wire flow in OPPOSITE DIRECTION relative to the coventional current

Yellow -- 4, voilet --7

1)False

2)True

3)false

4)true

5) false

6)true

7)true

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