A 1.35 V potential difference is maintained across a 1.1 m length of tungsten wire that has a cross-sectional area of 0.72 mm2 . What is the current in the wire? The resistivity of the tungsten is 5.6 × 10−8 Ω · m . Answer in units of A.

Therefore,

The current in the wire is 15.77 Ampere.

Explanation:

Given:

Length = l = 1.1 meter

V = 1.35 Volt

To Find:

Current, I =?

Solution:

Resistance for 1.1-m long tungsten wire with a cross sectional area, if it is connected across a 1.35 V potential difference given as

Where,

R = Resistance

l = length

A = Area of cross section

Substituting the values we get

Now by Ohm's Law,

Substituting the values we get

Therefore,

The current in the wire is 15.77 Ampere.

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the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation: