practice problem 4. Given the circuit belowâ¦. 1  Calculate the equivalent resistance of the circuit. 2  Calculate the current through the battery. 3  Graph voltage as a function of location on the circuit assuming that Va = 0 V at the negative terminal of the battery. 4  Graph current as a function of location on the circuit.
Definitions for hair-brush. This page provides all possible meanings and translations of the word hair-brush. Wiktionary(0.00 / 0 votes)Rate this definition: hair-brush(Noun) A brush used in hair care for brushing, tidying, and detangling hair.
A stiff hairlike structure: the bristles of a wire brush. v. brisÂ·tled, brisÂ·tling, brisÂ·tles. v.intr. 1. To stand stiffly on end like bristles: The hair on the dog's neck bristled. 2. To raise the bristles: The cat bristled at the sight of the large dog.