Q3: A static electrical device has 2000 turns uses 4000 mA from the supply connected to a laptop whichhas a power of 20 V, 1000 W. How can you find the amount of current used by the laptop? Identify suchstatic electrical device used and evaluate supply voltage taken by it. Which category does it belong basedon its ability to change voltage? Practical efficiency of such electrical device is less than 100 %. Justifywith reasons. What are possible ways to improve its efficiency?
Q3: A static electrical device has 2000 turns uses 4000 mA from the supply connected to a laptop whichhas a power of 20 V, 1000 W. How can you find the amount of current used by the laptop? Identify suchstatic electrical device used and evaluate supply voltage taken by it. Which category does it belong basedon its ability to change voltage? Practical efficiency of such electrical device is less than 100 %. Justifywith reasons. What are possible ways to improve its efficiency?
Chapter9: Current And Resistance
Section: Chapter Questions
Problem 55P: A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any...
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Q3: A static electrical device has 2000 turns uses 4000 mA from the supply connected to a laptop which
has a power of 20 V, 1000 W. How can you find the amount of current used by the laptop? Identify such
static electrical device used and evaluate supply voltage taken by it. Which category does it belong based
on its ability to change voltage? Practical efficiency of such electrical device is less than 100 %. Justify
with reasons. What are possible ways to improve its efficiency?
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