AC Cir

The period of a wave is

• the same as frequency
• time required to complete one cycle
• expressed in amperes
• none of the above

Tags

NGSS.HS-PS4-1

A heater is rated as 230 V, 10 kW. The value 230 V refers to

• average voltage
• r.m.s voltage
• peak voltage

The r.m.s value of an alternating current is given by steady (D.C) current which when flowing through a given circuit for a given time produces

• the more heat than produced by A.C when flowing through the sam circuit
• the less heat than produced by A.C when flowing through the sam circuit
• the same heat than produced by A.C when flowing through the sam circuit

If a sinusoidal wave has a frequency of 50 Hz with 30 A r.m.s current, which of the following equation represents the wave?

• 42.42 sin 314.2t
• 60 sin 25t
• 30 sin 50t
• 84.84 sin 25t

Tags

NGSS.HS-PS4-1

The type of current where charges shake back and forth in a circuit

• Alternating Current
• Direct Current
• Voltage 
• Switchback Current

AC stands for ___.

• Alternating Current
• Attraction Connections

Current that is used by most household appliances

• AC
• DC
• BC
• AC/DC

Current from a battery is 

• AC
• DC
• BC
• AC/DC

Tags

NGSS.HS-PS2-5

The RMS voltage of a sine wave is the same as the average voltage:

• True
• False

Tags

NGSS.HS-PS4-1

RMS voltage of a sine wave is the same as: 

• Effective voltage
• Average voltage
• Digital equivalent
• I can't think of another wrong answer