Question

Circuits Problem:

a). When the applied voltage is applied in opposite polarity, the voltage across the diode is the same as the applied voltage. True or False

b.) The arrow (triangle) in the schematic symbol of a diode points to the

	a.	Voltage flow
	b.	Conventional Current flow
	c.	Electron flow
	d.	All of these

c.) You can add and superimposeany two input signals using the oscilloscope.  True or False

d.) What would happen to the equivalent resistance when 2, 3 and 5 Ohm resistor are connected in parallel?

	a.	Resistance equal to 3.
	b.	Resistance Lower than 2.
	c.	Resistance greater than 5.
	d.	Resistance greater than 2.

Answer 1

a) True

When the polarity is reversed, diode becomes reverse biased and act as a resistor. Hence the applied voltage is dropped across it.

b) coventinal current flow

During forward biased condition holes in p region moves towards junction , hence the conventional current.

c) False

Oscilloscopes are used to view, measure frequency or time period of waves

d) the effective resistance will be lower than 2.

In parallel connection effective resistance is smaller than the smallest resistor