---
title: "A student connects an ohmic heating element with a resistance of \\(5.0\\text{ }\\Omega\\) across the terminals of an ideal \\(20\\text{ V}\\) direct current power supply. What is the rate at which thermal energy is dissipated by the heating element?"
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date_modified: "2026-08-23T04:34:15+00:00"
---

# A student connects an ohmic heating element with a resistance of \(5.0\text{ }\Omega\) across the terminals of an ideal \(20\text{ V}\) direct current power supply. What is the rate at which thermal energy is dissipated by the heating element?

A student connects an ohmic heating element with a resistance of \(5.0\text{ }\Omega\) across the terminals of an ideal \(20\text{ V}\) direct current power supply. What is the rate at which thermal energy is dissipated by the heating element?

- **A.** \(4.0\text{ W}\)
- **B.** \(16\text{ W}\)
- **C.** \(40\text{ W}\)
- **D.** \(80\text{ W}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/120375/*