11/03/2020 Electricity (Study by Topics Junior Class) 0Comments by Gate Academy Welcome to your Electricity (Study by Topics Junior Class) NAME EMAIL PHONE NUMBER 1. What is resistance?Energy from batteryAn increase in voltageAn increase in currentOpposition to current2. Which of the following is a good conductor?GlassPlasticIronWood3. Electric current in a/an _____________________ circuit travels in ONE path. ParallelSeriesElectricWire4. A/An _____________________ is used to turn the electricity in a current on or off. InsulatorSwitchConductorBattery5. What is static electricityAn electric charge, tends to stay on the surface of an object, rather than leaving quicklyAn electric charge, that comes and go's very quicklyThe motion of a laughing hyenaAn electric charge, tends to make your feet swell6. In order for a circuit to work, the path must be _____ParallelOpenSeriesClosed7. A low-resistance connection established by accident or intention between two points in an electric circuit is known as _____Closed circuitOpen circuitShort circuitDirect circuit8. The current flowing in a conductor is proportional toSquare of area of cross sectionDrift velocity1/ area of cross section1/no of electrons9. The resistance of a hotplate is 48 Ω. How much current does the plate carry when connected to a 120-V source?5760 A2.5 A120 A0.4 A10. A metal strand used to connect electrical devices in a circuit is a/an _________BatteryFilamentWireSwitch11. A material through which electric current CAN pass easily in a/an ____ InsulatorConductorReceptorTester12. V1, V2 and V3 are the potential differences across the 1Ω, 2Ω and 3Ω resistors in the following diagram, and the current is 5A.Which of the following shows the correct values of V1, V2 and V3measured in volts?V1 =4, V2 = 3 and V3 = 2V1 =5, V2 = 10 and V3 = 15V1 =1, V2 = 2 and V3 = 3V1 =5, V2 = 2.5 and V3 = 1.613. A power source than can produce an electric current as a result of a chemical change in it is a/an _________CircuitBatteryFilamentWire14. If in the given arrangement, the three resistors are replaced by a single resistor; then its resistance will be:9Ω4Ω6Ω18Ω15. An electrical appliance has a resistance of 25 Ω. When this electrical appliance is connected to a 230 V supply line, the current passing through it will be:0.92 A2.9 A92 A9.2 A16. Keeping the potential difference constant, the resistance of the circuit is halved. The current will become:DoubleHalfFour timesOne-fourth17. When two 2Ω resistances are in parallel, the effective resistance is2 Ω0.5 Ω4 Ω1 Ω18. What is charging by friction A process where you eat food really fast, causing your tummy muscles to rub against each otherA bone injury, most common when to bones rub against each otherA process where objects from different materials rub against each other producing a net static charge on each (electrons bounce between)All of the above19. What is the function of a fuse?Another name for a switchA protective device for breaking an electric circuit.A wire with high resistance to prevent current from passing throughA protective device to slow down the current20. What is electricityA form of energy resulting in the motion of wind turbinesA form of energy, created by Steve JobsNone of the aboveForm of energy, resulting from the interaction of charged particles, such as protons or electrons21 out of 20Time is Up!
