primary voltage to many thousands of volts in order to produce electric sparks several inches long. Let's do a little analysis of a spark gap. The primary coil of this spark gap has 100 turns of copper wire with a resistance of 2.6 2. The secondary coil consists of 30,000 turns of wire with a resistance of 5 k.(The following calculation is VERY approximate since there are many complicating factors we have not discussed.) When a 12 V battery is connected to the primary coil what current will run through the coil? a. b. C. What will be the strength of the magnetic field through the primary coil? If the primary coil has a radius of 1 cm, what is the magnetic flux through the coil?
primary voltage to many thousands of volts in order to produce electric sparks several inches long. Let's do a little analysis of a spark gap. The primary coil of this spark gap has 100 turns of copper wire with a resistance of 2.6 2. The secondary coil consists of 30,000 turns of wire with a resistance of 5 k.(The following calculation is VERY approximate since there are many complicating factors we have not discussed.) When a 12 V battery is connected to the primary coil what current will run through the coil? a. b. C. What will be the strength of the magnetic field through the primary coil? If the primary coil has a radius of 1 cm, what is the magnetic flux through the coil?
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answer all sub questions in volts if possible a-f
Transcribed Image Text:e.
What current will flow through the secondary coil while it experiences the voltage from part d?
f. Compare the voltage and current in the primary to the voltage and current you calculated for the secondary. What was
the trade-off?
Transcribed Image Text:5. One of the results of Faraday's observations on induction was the spark gap. This is just a transformer that steps up the
primary voltage to many thousands of volts in order to produce electric sparks several inches long. Let's do a little analysis of
a spark gap.
The primary coil of this spark gap has 100 turns of copper wire with a resistance of 2.6 2. The secondary coil consists of
30,000 turns of wire with a resistance of 5 k.(The following calculation is VERY approximate since there are many
complicating factors we have not discussed.)
When a 12 V battery is connected to the primary coil what current will run through the coil?
a.
b.
C.
What will be the strength of the magnetic field through the primary coil?
If the primary coil has a radius of 1 cm, what is the magnetic flux through the coil?
d. When the battery is disconnected, assume it takes 2 milliseconds for the magnetic field to fall to 0. What voltage is
induced in the secondary coil?
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