Class 10 Electricity Test2

According to ohm's law,

• The resistance increases with the increases in current.

• The resistance increases with the increases in voltage.

• The resistance and current both increases wiTh the increases in voltage.

• The current increases with the increases in voltage.

Current carriers in Electrolyte are/is

• Free electrons

• Holes

• Electrons and holes both

• Positive and negative ions

An electrical component that we use in electronics circuits to limit current though an active component or to reduce voltage in the circuit.

• Capacitor

• Current

• Resistor

• Ancestor

What is the unit of measurement for resistance?

• Voltage

• Ampere

• Watts

• Ohms

This is symbol of

• Resistor

• Cell

• Variable resistance

• Ammeter

Which instrument is used to measure potential difference

• Ammeter

• Voltmeter

• Rheostat

• All of these

Work done in moving a charge of 2C across 2 points having a potential difference of 12V is

• 6J

• 24J

• 12J

• 48J

Which is the correct mathematical form of Ohm"s law

• I = V R

• R = I V

• V = I / R

• V = I R

Resistance of conductor depends on its

• Length

• Area of cross section

• Nature of material

• All of these

SI unit if resistivity

• Ohm

• Ampere

• Ohm metre

• Volt