Look at the symbol. Which component in a circuit does it represent? A. resistor
B. switch
C. AC power source
D. DC power source

Resistor

Explanation:

a device having a designed resistance to the passage of an electric current.

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

there are no atoms