2. In an AC circuit, only a resistor of resistance 15
2 is present. If voltage applied is V = 150 sin(50t)
volt then rms current is [NCERT Pg. 235]
(1) 52 A
(2) 5 A
(3) 10 A
(4) 10V2 A

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

How much work would it take to move a coulomb charge across a 4 volt potential difference?

Elements in group viiia (also known as group 18, or the noble gases) have similar properties because they all have a. the same number of electron shells b. full octets c. the same number of valence electrons d. the same number of electrons needed to fill their octet