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Eht power supply?

It's on the specification, and I've never really heard of it.
Can anyone explain to me its significance?
Like, what eht really means (extra high tension, okay...but that means nothing to me), typical values for votages or currents or internal resistances, uses...

Thanks.

Reply 1

silent ninja

this came up in one of the AS physics papers, god knows what it is. i'd like to know, i think it provides large currents.

anyone?

Reply 2

Mohit_C

Ok, i thought eht was electrical heating t?. Well yes, I remember this one. It has a really high resistance, approximately 10*10^6 ohms (10Mohms). In that case don't really think it provides large currents silentninja, or I may be wrong.

Reply 3

Mattywat

http://en.wikipedia.org/wiki/Extra_high_tension

It's a high voltage power supply, with a low current and high resistance.

Reply 4

Mohit_C

Ah, I was sort of right then.

Reply 5

silent ninja

ah thanks to both of you. i didnt know that.

Reply 6

Eau

so what's the practical significance of an extra high tension power supply then? safety?

Reply 7

the_man12345

wildfire

so what's the practical significance of an extra high tension power supply then? safety?

yeah its for safety.

Reply 8

teachercol

Typicaly they have source resistances of Mohms so they CANT spply large currents.
Often used for accelerating charges.

Reply 9

Kyred

E.H.T supply has very high voltage. When the internal resistance is set to be 1 M Ω, the resistance in the external circuit R is negligible. Using I = ε / r. The current is very small for safety precaution. For example,
I
= 5000/10000000
= 0.0005 A

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