A Laboratory Course in Everyday PhysicsMacmillan, 1931 - 205 σελίδες |
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Σελίδα 206
... Watt . — The Daniel cell has an e . m . f . of 1 volt and gives a current of about 1 ampere , therefore since watts = volts X amperes , it works at the rate of IX I = 1 watt . A dry cell has an e . m . f . of 1.5 volts , and when it is ...
... Watt . — The Daniel cell has an e . m . f . of 1 volt and gives a current of about 1 ampere , therefore since watts = volts X amperes , it works at the rate of IX I = 1 watt . A dry cell has an e . m . f . of 1.5 volts , and when it is ...
Σελίδα 209
... watts of energy they use . In this case the amount of heat produced may be calculated directly . Problem . 1100 watts . minute ? - An electric oven uses electrical energy at the rate of How many gram calories of heat are produced in it ...
... watts of energy they use . In this case the amount of heat produced may be calculated directly . Problem . 1100 watts . minute ? - An electric oven uses electrical energy at the rate of How many gram calories of heat are produced in it ...
Σελίδα 210
... watt . 2. State Ohm's law . 3. How is the power of a current determined in watts ? 4. State Joule's law . 5. State the e . m . f . in volts of the current in some common appliances . 6. State the rate of current in amperes obtained from ...
... watt . 2. State Ohm's law . 3. How is the power of a current determined in watts ? 4. State Joule's law . 5. State the e . m . f . in volts of the current in some common appliances . 6. State the rate of current in amperes obtained from ...
Περιεχόμενα
CHAPTER | 1 |
CHAPTER II | 13 |
CHAPTER III | 20 |
Πνευματικά δικαιώματα | |
16 άλλες ενότητες δεν εμφανίζονται
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
amperes appliances armature atmosphere B. T. U. of heat bell body boiling point Boyle's law British Thermal Unit calories carbon centimeter coil cold water compressed convection cooled copper cubic cylinder Daniell cell density diagram direction distance dynamo electric current electromagnet electromotive force engine equal evaporation example exerted expands experiment fire flask foot pounds force arm fruit press fulcrum gases glass gram hot-water induced current iron jackscrew Joule's law lamp latent heat Leclanché cell lens lever lines of force liquid magnetic lines measure mercury metal meter molecules motor moves north pole object Ohm's law ohms Pascal's law passes pipe piston placed plate poundals pressure produced radiation rays resistance screw shown in Fig sound south pole square inch steam stove stroke substance surface tank temperature thermometer tube turned vacuum valve velocity vibration volts volume warmed watts waves weight arm wire