If a new parallel branch with a resistor is added to an existing circuit, what is the effect on the total current drawn from the energy source?

True or False: In a parallel circuit, adding more branches decreases the voltage across the existing components.

Consider a parallel circuit with two branches containing resistors $R_1 = 4\ \Omega$ and $R_2 = 12\ \Omega$. Which statement about the total resistance of this circuit is correct?

For an ideal gas-like model of charge flow, the electric current is defined as the __________ of charge passing a point in a circuit.

A component that is specifically designed to transfer electrical energy into thermal energy is best described as a __________.