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G5C07: What transformer turns ratio matches an antenna’s 600-ohm feed point impedance to a 50-ohm coaxial cable?

G5C07G5C

What transformer turns ratio matches an antenna’s 600-ohm feed point impedance to a 50-ohm coaxial cable?

Answer choices for G5C07
Why this wins

The key fact is 3.5 to 1. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

Memory hook: A half wave dipole is two quarter wave legs.

E = I × R

Direct answer summary (2023-2027 NCVEC pool)

The official correct answer for G5C07 is 3.5 to 1.

The key fact is 3.5 to 1. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

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More questions in G5C

G5C01What causes a voltage to appear across the secondary winding of a transformer when an AC voltage source is connected across its primary winding?G5C02What is the output voltage if an input signal is applied to the secondary winding of a 4:1 voltage step-down transformer instead of the primary winding?G5C03What is the total resistance of a 10-, a 20-, and a 50-ohm resistor connected in parallel?G5C04What is the approximate total resistance of a 100- and a 200-ohm resistor in parallel?G5C05Why is the primary winding wire of a voltage step-up transformer usually a larger size than that of the secondary winding?G5C06What is the voltage output of a transformer with a 500-turn primary and a 1500-turn secondary when 120 VAC is applied to the primary?