Physics Which is evidence that supports the dynamo theory? Convection occurs in Earth's inner core Granite and basalt conduct electricity Earth's core contains a large amount of iron Earth's outer core contains liquid that conducts electricity Convection occurs in Earth's inner core Granite and basalt conduct electricity Earth's core contains a large amount of iron Earth's outer core contains liquid that conducts electricity ANSWER DOWNLOAD EXAMIANS APP
Physics Find the resistance (in mega) of a wire of length 20m, cross sectional area 1 cm2 and made of a material of resistivity 200m. 2000 80 40 4000 2000 80 40 4000 ANSWER DOWNLOAD EXAMIANS APP
Physics On the Kelvin scale, the melting point of ice is 0 K 373K 273K 100K 0 K 373K 273K 100K ANSWER DOWNLOAD EXAMIANS APP
Physics The rice is cooked more quickly in a pressure cooker because None of these Less quantity of water is used. Water boils at a higher temperature under pressure. It is covered. None of these Less quantity of water is used. Water boils at a higher temperature under pressure. It is covered. ANSWER DOWNLOAD EXAMIANS APP
Physics Solids which conduct electricity at higher temperature but not at lower temperature are called Semi-conductor Insulator Super-conductor Metallic-conductor Semi-conductor Insulator Super-conductor Metallic-conductor ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is used for sun glasses ? Crystal glass Pyrex glass Flint glass Crooks glass Crystal glass Pyrex glass Flint glass Crooks glass ANSWER DOWNLOAD EXAMIANS APP
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