Acurrent in a wire increases from 2 a to 6 a. how will the magnetic field 0.01 m from the wire change? a) it increases to four times its original value. b) it increases to three times its original value. c) it decreases to one-fourth its original value. d) it decreases to one-third its original value.

B) It increases to three times its original value.  

Given the same radius of wire and other constant property, current is directly proportional to the magnetic field.

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.

answer: good job it's all correct !

explanation: