Updated: Feb 19, 2026 | Source: 2026-2030 Question Pool | Topic: T5D
T5D02T5D

What formula is used to calculate voltage in a circuit?

Deep Dive: T5D02

The official 2026-2030 Question Pool answer is A: E = I x R. This Technician question is synchronized with the current NCVEC release and incorporated errata. Use the exact wording and answer key shown here when preparing for the current exam pool.

Why Other Answers Are Wrong

Option B: This is not the keyed answer in the current official pool. The official keyed answer is A: E = I x R. Option C: This is not the keyed answer in the current official pool. The official keyed answer is A: E = I x R. Option D: This is not the keyed answer in the current official pool. The official keyed answer is A: E = I x R.

Exam Tip

For T5D02, remember the current official key: A - E = I x R.

Memory Aid

T5D02: A - E = I x R

Source & Coverage

Question Pool: 2026-2030 Question Pool

Subelement: T5D

Reference: 2026-2030 Question Pool · T5 - Electrical principles

Key Concepts

T5D Technician question pool official answer key

Official Pool Source

Question text and answer key are synchronized with the current NCVEC Technician Class pool and mapped to the T5D topic.