Describe what transpires in a transformer with a loaded secondary.
What will be an ideal response?
When a load is connected across the secondary winding a current is induced into the secondary. Transformers are wound with the secondary on top of the primary. The magnetic field created by the primary current cuts the secondary windings. The current in the secondary establishes a magnetic field of its own. The expanding magnetic field in the secondary cuts the primary turns, inducing a voltage back into the primary. This magnetic field expands in the same direction as the current in the primary, aiding it and causing it to increase, with an effect called mutual inductance. The primary induces a voltage into the secondary and the secondary induces a voltage back into the primary.
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ASTM specifications classify masonry mortar into four types. Name them.
What will be an ideal response?
What is a marker bull?
What will be an ideal response?
A long tube called the ____________________ leads from the epididymis to the seminal vesicles at the upper end of the urethra
Fill in the blank(s) with correct word
____ is the effect a magnet has on an object without physical contact.
A. Magnetic induction B. Electromagnetic induction C. Magnetic shield D. Magnetic field