The correct answer is B, a laminated core and a shading coil.
A key difference in an AC relay is the presence of a "shading coil". The purpose of this coil is to keep the relay on when the current drops to zero during phase change (note that in AC power the current and voltage are alternating in a sine wave around 50/60 times per second). The shading coil retains some magnetic energy and essentially holds the relay ON when the current drops to zero momentarily due to the AC waveform.
AC relays also have a laminated core to prevent losses due to eddy current heating.
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I’m sorry this is unclear . What exactly do you need .
Fill color is the answer hope this helps
The relation between Power, Current and Voltage is given as:
P = V i
where P is Power in Watts,
V is Voltage in Volts,
and i is Current in Ampere.
We are given:
Power = 150 milliwatts = 0.15 Watts
(as 1 milliwatt = 0.001 Watts)
Voltage = 1.5 volts
and we need to find the current.
Hence using above equation:
P = V i
i = 
i = 
i= 0.1 Ampere
Answer:
The current used is 0.1 Ampere
