EE

An interconnection of electrical devices

• electric circuits

• electrical system

• DC Circuits

• Wiring Diagram

In this system,

there are seven principal units from which the units of all other physical

quantities can be derived

• SI units

• Metric cgs

• Americal

• US Customary Units

Basic Unit of Thermodynamic temperature?

• Kelvin

• Celcius

• Farenheight

• Centigrade

 $10^{-15}$  means

• femto

• atto

• hecto

• peta

An electrical property of the atomic particles of which matter consists.

• Resistance

• Current

• Charge

• Conductance

The charge e on an

electron is negative and equal in magnitude of ?

• $1.602\ x\ 10^{-19}$

• $1.613\ x\ 10^{19}$

• $1.912\ x\ 10^{-20}$

• $-10$

How many electrons are there in 1 C of charge?

• $6.24\ x\ 10^{18}$

• $624\ x10^{-19}$

• $624,000$

• $1.602\ x\ 10^{-19}$

This states that charge can neither

be created nor destroyed, only transferred. Thus the algebraic sum

of the electric charges in a system does not change.

• The law of conservation of heat

• The law of conservation of mass

• The law of conservation of energy

• The law of conservation of charge

The time rate of change of charge

• Voltage

• Potential Difference

• Electric current

• Absorbed Power

If the current does not change with time, but remains constant, we call it a ___________________

• direct current

• steady current

• pulsating current

• alternating current