Answer:
The dimension of power is energy divided by the time or ![[ML^2T^-3]](https://tex.z-dn.net/?f=%5BML%5E2T%5E-3%5D)
Explanation:
Power =
We can derive Dimensions of Power from both formula.
Power = Force * Velocity
As,
Force = mass * acceleration
Therefore, Dimensions of
Force = ![[M]*[LT^-2] = [MLT^-2]](https://tex.z-dn.net/?f=%5BM%5D%2A%5BLT%5E-2%5D%20%3D%20%5BMLT%5E-2%5D)
Since,
Velocity = 
Now, Dimension of
Velocity = ![[LT^-1]](https://tex.z-dn.net/?f=%5BLT%5E-1%5D)
We have Both Dimensions,Now we can derive Dimensions Of Power,
Power = Force * Velocity
Power =![[MLT^-2] * [LT^-1]](https://tex.z-dn.net/?f=%5BMLT%5E-2%5D%20%2A%20%5BLT%5E-1%5D)
Power =
Answer:
Explanation:
Magnitude of magnetic field due to a current carrying conductor
= ( μ₀ / 4π ) x 2I / d , I is current , d is distance from wire . This formula has been derived from Ampere's Law.
= 10⁻⁷ x 2 x 23 / 10 Current given I = 23
= 46 x 10⁻⁸ T .
Magnetic field due to current 17 A
10⁻⁷ x 2 x 17 / 10
= 34 x 10⁻⁸ T .
Magnetic field due to current 11 A
10⁻⁷ x 2 x 11 / 10
= 22 x 10⁻⁸ T .
magnetic field due to current 17 A and 11 A are in same direction so total magnetic field
= 34 x 10⁻⁸ + 22 x 10⁻⁸
= 56 x 10⁻⁸ T
magnetic field due to current 23 A in opposite direction so total magnetic field
= 46 x 10⁻⁸ - 56 x 10⁻⁸
= - 10 x 10⁻⁸ T
Magnitude = 10 x 10⁻⁸ T .
Answer:
The magnitude of their velocities will be the same but their direction will be reversed.
Answer:
The resistance interval is 
Explanation:
From the question we are told that
The voltage is V = 9 V
The current is 
The maximum current would be
The minimum current would be
The maximum resistance is
The minimum resistance is
and 
The interval R lies is
200 miles/420 secs = 10/21
350 mile/280 secs = 5/4
(5/4+10/21)/2= 145/168 miles per sec
or .86 miles/sec
