Answer:
Current, I = 2.3 A
Explanation:
We have,
Voltage of the battery in a circuit is 9 volts
Resistance of the circuit is 4 ohms
It is required to find the current in a circuit. When the voltage and the resistance of the circuit is given then we can find the current in it is given by Ohm's law as :
![V=IR](https://tex.z-dn.net/?f=V%3DIR)
I is electric current
![I=\dfrac{V}{R}\\\\I=\dfrac{9}{4}\\\\I=2.25\ A](https://tex.z-dn.net/?f=I%3D%5Cdfrac%7BV%7D%7BR%7D%5C%5C%5C%5CI%3D%5Cdfrac%7B9%7D%7B4%7D%5C%5C%5C%5CI%3D2.25%5C%20A)
or
I = 2.3 A
So, the current in the circuit is 2.3 A.
"Voltage" is the "pressure" that makes electrons want to leave where they are
and head in some direction, if there's conducting material in that direction.
"Current" is the rate at which they all migrate in that direction.
I believe the answer is c
Answer:
13 m/s^2
Explanation:
The acceleration of gravity near the surface of a planet is:
g = MG / R^2
For planet 1, g = 26 m/s^2.
The gravity on planet 2 in terms of the mass and radius of planet 1 is:
g = (2M)G / (2R^2)
g = 1/2 MG / R^2
Since MG/R^2 = 26 m/s^2, then:
g = 13 m/s^2