If a coil has 194 layers and 215 turns per layer, how many total turns does it have?

• A. 41,710
• B. 40,210
• C. 41,200
• D. 42,000

Answer: (A)

Total turns come from multiplying how many layers there are by how many turns each layer contains. With 194 layers and 215 turns per layer, multiply 194 by 215.

Compute: 215 × 200 = 43,000 and 215 × 6 = 1,290, so 43,000 − 1,290 = 41,710.

So the coil has 41,710 turns in total.