Question: You are measuring the current in a circuit that is operated on an 18 V battery. The ammeter reads 40 mA. Later you notice the current has dropped to 20 mA. How much has the voltage changed?
Options
A : 9 V
B : 900 mV
C : 0 V
D : 18 V
Ohm's Law - General Questions more questions
What is the voltage source for a circuit carrying 2....
What is the approximate resistance setting of a rheostat in....
How much voltage is needed to produce 2.5 A of....
When there is 12 mA of current through a 1.2....
A resistance of 3.3 M is connected across a 500....
The current through a flashlight bulb is 40 mA and....
If you wish to increase the amount of current in....
If 24 V are applied across a resistor and there....
How much resistance is needed to draw 17.6 mA from....
How much current is produced by a voltage of 18....
Alternating Current and Voltage - General Questions more Online Exam Quiz
Circuit Theorems and Conversions - General Questions
Circuit Theorems in AC Analysis - General Questions
Energy and Power - General Questions
Magnetism and Electromagnetism - General Questions
Parallel Circuits - General Questions
Passive Filters - General Questions
Quantities and Units - General Questions