Correct Answer: C. ENIAC

Correct Answer: C) Chambers of Commerce

Explanation

Chambers of Commerce are organizations that represent the interests of businesses in a particular area or industry. They work to promote and support local businesses, including organizing trade fairs and exhibitions. Trade fairs are events where businesses showcase their products and services to potential customers and partners. They provide a platform for businesses to network, market their products, and explore new business opportunities.

The Ministry of Commerce and Tourism (Option A) is a government department that oversees trade and tourism activities in a country. While they may have some involvement in trade fairs, their main role is to develop policies and regulations related to commerce and tourism.

The Ministry of Finance (Option B) is responsible for managing a country's financial resources and formulating economic policies. They are not directly involved in organizing trade fairs.

The Export Promotion Council (Option D) is an organization that promotes and supports the export of goods and services from a country. While they may be involved in trade-related activities, their focus is specifically on exports, not trade fairs.

Therefore, the correct answer is Option C: Chambers of Commerce. They are the body that organizes, promotes, and participates in local and foreign trade fairs.

Correct Answer: B. the induced current in a conductor is in such a direction as to oppose the change producing it

Explanation

(a) What is a spring?

A spring is a natural outflow of water from underground to the surface of the earth. The water may seep out gently or gush out strongly. The outflow of water occurs at or below the plane where the water table intersects the surface.

(b) Formation of springs;

In areas of tilted strata, where permeable and impermeable rock alternate, water emerges at the base of the permeable layer. In well jointed rocks, water may percolate downwards until it reaches a joint which emerges at the surface. The water may come to the surface through the joint to form a spring. Where a dyke or sill of impermeable rock is intruded through permeable rocks it causes the water table to reach the surface. The water issues out as spring. In limestone or chalk escarpments, where the permeable rock lies between impermeable strata, water issues at the foot of the scarp as springs. In Karst regions rivers often disappear underground and may re-emerge as a resurgence.

Correct Answer: A)?96,000

Correct Answer: B. mother

Correct Answer: D. 500

Explanation

Ep = 2.2kV = 2200V; Es=110V; Ns=25; Np=?

=\(\frac{E_p}{E_s}\) = \(\frac{N_p}{N_s}\)

= \(\frac{2200}{110}\) = \(\frac{N_p}{25}\)

=110 × Np = 2200 × 25

=\(N_p\) = \(\frac{55,000}{110}\)

∴\(N_p\) = 500 turns

Correct Answer: A. clay

Correct Answer: C. debited