Shanky.j
Newbie level 4
We have a dc power supply and if i connect its positive wire to 12v bulb and the negative wire of bulb to ground (ground which is on AC supply socket on wall) will the bulb glow ??
Can the ground on AC supply socket on wall be used anywhere as ground ??
In my experiment the bulb did't glow. I checked the ground on wall socket with DMM by putting +ve wire of DMM in +ve of socket and -ve wire of DMM in ground of socket, the DMM showed 235 Volts. so i considered the ground of wall socket is working fine. but when i tried to glow the bulb as told above it did't glowed. i am very confused why ?? . i tell you one more thing that if i connects the -ve of bulb to -ve of DC power supply then it starts glowing.
If i get the answer of this question i will ask my main confusion regarding unexpected behaviour of ground with test bench. Thanks in advance.
Can the ground on AC supply socket on wall be used anywhere as ground ??
In my experiment the bulb did't glow. I checked the ground on wall socket with DMM by putting +ve wire of DMM in +ve of socket and -ve wire of DMM in ground of socket, the DMM showed 235 Volts. so i considered the ground of wall socket is working fine. but when i tried to glow the bulb as told above it did't glowed. i am very confused why ?? . i tell you one more thing that if i connects the -ve of bulb to -ve of DC power supply then it starts glowing.
If i get the answer of this question i will ask my main confusion regarding unexpected behaviour of ground with test bench. Thanks in advance.