Cells in parallel increase:
Voltage
Resistance
Current capacity
Capacitance
In a parallel circuit, voltage is:
Zero
Same across all branches
Different in each branch
Equal to current
In a series circuit, total resistance is:
Sum of all resistances
Minimum resistance
Product of resistances
Which component opposes sudden voltage change?
Coil
Capacitor
Fuse
Resistor
Series-parallel circuits are used when:
Only one voltage needed
Simple connections required
Combination of loads used
No resistors used
Electrostatic effect is caused by:
Moving electrons
Stationary charges
Heating
Magnetism
Magnetic field is produced by:
Static electricity
Heat energy
Current flow
Right-hand rule is used for:
Heat direction
Magnetic field direction
Power factor
Voltage drop
Unit of magnetic field strength is:
Tesla
Henry
Farad
Ohm
Magnetism disappears when:
Heat applied
Current stops
Voltage drops
Resistor added
Heating effect of current is used in:
Battery
Bulb
Transformer
The magnetic effect is strongest at:
Center of wire
Ends of wire
Near bends
Around the coil
Current carrying wire produces:
Static charge
Light energy
Magnetic field
No effect
Heating effect of current depends on:
Time
Current squared
All of the above
Electromagnetic induction is the principle of:
Generator
Circuit breakers are used in place of:
Resistors
Capacitors
Fuses
Bulbs
Fuses are rated in:
Volts
Watts
Ohms
Amperes
If fuse blows repeatedly, it means:
Wire is loose
Voltage is low
Current is high
Battery is weak
The color code for neutral wire in India is:
Red
Blue
Black
Green
What causes short circuit?
Proper earthing
Insulation failure
Switch OFF
High voltage
Main purpose of grounding is:
Power backup
Prevent fire
Reduce power
Safety from shock
High resistance in a circuit will result in:
High current
Low current
Short circuits cause:
Increase in voltage
Overheating
Circuit to open
Decrease in power
Resistance is measured in:
Which instrument is used to check continuity of wire?
Voltmeter
Ammeter
Multimeter
Wattmeter
